CTEB-101-INGE-R-ET-5ada026-0+inglés[1]

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CTEB-101-INGE-R-ET-5026 Page: 1 450-01-I-M-27700-R4 of: 43 CLIENT: ENARSA PROJECTO: ENSENADA DE BARRAGAN THERMAL POWER PLANT TECHNICAL SPECIFICATION PAINT TECHNICAL SPECIFICATION (This document is the English version of CTEB-101-INGE-R-ET-0026) 0 2013-03-27 For construction NPC B 2013-03-06 For approval NPC MLR JUJ A 2012-12-21 For approval NPC MLR JUJ REV DATE DESCRIPTION ISSUED REVISED APPROVED

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Transcript of CTEB-101-INGE-R-ET-5ada026-0+inglés[1]

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    450-01-I-M-27700-R4 of: 43 CLIENT: ENARSA

    PROJECTO: ENSENADA DE BARRAGAN THERMAL POWER PLANT

    TECHNICAL SPECIFICATION

    PAINT TECHNICAL SPECIFICATION (This document is the English version of CTEB-101-INGE-R-ET-0026)

    0 2013-03-27 For construction NPC B 2013-03-06 For approval NPC MLR JUJ A 2012-12-21 For approval NPC MLR JUJ

    REV DATE DESCRIPTION ISSUED REVISED APPROVED

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    PAINT SPECIFICATION

    CLASSIFICATION

    It contains information for the design of structures, systems or components: Yes No

    Design verification: N/A U.O chief./Supervisor Verificator level 1 level 2

    REVISION CHECK

    Rev. Revisions

    A B

    0

    N/A first issue Update of documents as per SENERs remarks. Revisions shall de marked with a line in the right margin. Subsections revised: 2:The subsection title is modified and the reference to the open cycle paint specification is added. 4: Addition: The paint manufacturer shall be considered for every product, although this specification shall be taken in consideration. No changes

    PRELIMINARY OR PENDING INFORMATION

    Rev. Subsections Concept Status

    0 - - -

    DISTRIBUTION

    External Internal N copies/Support

    UTE

    MCQ, REA, AHA, MLY, NNA, JUJ, MLR, NPC, AGD

    1/Correo electrnico

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    PAINT SPECIFICATION

    Index

    1. PURPOSE ................................................................................................................... 51.1 PAINT AT FACTORY SCOPE ........................................................................ 61.2 PAINT AT SITE SCOPE ................................................................................. 9

    2. REFERENCED DOCUMENTS .................................................................................... 93. CODES, REGULATIONS AND STANDARDS ............................................................ 94. GENERAL REQUIREMENTS ................................................................................... 10

    4.1 RUST PREVENTION .................................................................................... 114.2 CATHODIC PROTECTION COMPATIBILITY .............................................. 11

    5. PAINT SELECTION .................................................................................................. 116. SURFACE PREPARATION ....................................................................................... 12

    6.1 CARBON STEEL .......................................................................................... 126.2 PREVIOUSLY COATED STEEL SURFACES .............................................. 146.3 GALVANIZED STEEL ................................................................................... 146.4 COLD-ROLLED STEEL ................................................................................ 156.5 STAINLESS STEEL AND SLIGHT ALLOYS ................................................ 156.6 CONCRETE AND CEMENT SURFACES .................................................... 16

    7. PAINT APPLICATION ............................................................................................... 167.1 GENERAL .................................................................................................... 167.2 SAFETY REGULATIONS ............................................................................. 187.3 FILM THICKNESS ........................................................................................ 187.4 REPAIRS ...................................................................................................... 187.5 INACCESSIBLE AREAS AFTER ASSEMBLY.............................................. 187.6 SURFACES TO BE WELDED AFTER PAINTING ........................................ 187.7 INSULATED SURFACES ............................................................................. 197.8 GALVANIZED, STAINLESS STEEL OR ALUMINUM SURFACES .............. 197.9 SUPPORTS .................................................................................................. 197.10 CONCRETE ................................................................................................. 19

    8. PAINT SCHEMES ..................................................................................................... 208.1 COATING SYSTEM SELECTION ................................................................ 20

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    8.2 COMMERCIAL PAINTS ............................................................................... 269. COLORS ................................................................................................................... 32

    9.1 EQUIPMENT AND STRUCTURE ................................................................. 329.2 PIPING AND VALVES .................................................................................. 33

    10. IDENTIFICATION ...................................................................................................... 3310.1 IDENTIFICATION BANDS ............................................................................ 3310.2 EQUIPMENT IDENTIFICATION ................................................................... 34

    11. INSPECTION ............................................................................................................ 3411.1 GENERAL .................................................................................................... 3411.2 INSPECTION DEVICES ............................................................................... 3511.3 INSPECTION STAGES ................................................................................ 3511.4 THICKNESS MEASUREMENT .................................................................... 3611.5 ADHESION TESTING .................................................................................. 3611.6 DETECTION OF DISCONTINUITIES ........................................................... 3611.7 REJECTION ................................................................................................. 3611.8 DOCUMENTATION ...................................................................................... 36

    12. WARRANTY .............................................................................................................. 3612.1 WARRANTY TERM ...................................................................................... 3612.2 PAINT IN SITE OVER COATING APPLIED IN FACTORY .......................... 3712.3 PAINT APPLIED IN FACTORY .................................................................... 37

    13. HANDLING AND APPROVAL OF DOCUMENTS ..................................................... 3713.1 WORKS IN FACTORY ................................................................................. 3713.2 WORKS IN SITE ........................................................................................... 37

    ANNEX A FORMATS........................................................................................................ 39

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    1. PURPOSE This specification aims at defining the technical requirements the paint applied on components and/or structures (from now on components) shall meet in the conversion to the Thermal Power Ensenada de Barragn combined cycle.

    The Ensenada de Barragn Thermal Power plant is located in the city of Ensenada, 19 km far from the city of La Plata, capital of the province of Buenos Aires, and 50 km from Ciudad Autnoma de Buenos Aires Argentina.

    This plant has a 413 MW combined cycle that uses natural gas as fuel. The unit can also work by burning diesel oil (distilled #2) as fuel and generating 385 MW. The unit is composed by one (1) dual gas turbine (Natural-distilled gas), one (1) heat recovery steam generator (HRSG), one (1) steam surface, one (1) surface condenser and the respective systems and auxiliary equipment.

    The requirements herein mentioned apply both to the work in factory and to the work in site.

    The person responsible for the job (from now on, the supplier) shall be the supplier of the component for the work in factory or the person who applies the paint in the site for the tasks to be performed during the construction of the plant.

    The scope of these tasks is defined below in this specification and in the component specification as well. The other tasks, if any, shall be responsibility of the person in charge of applying paint in the site.

    Paints shall protect surfaces against corrosion and erosion caused by the below mentioned environmental conditions. Besides, the paint shall resist the conditions derived from the operation of the different components.

    Barometric pressure: 1015 mbar Temperature:

    - Maximum 41,7 C

    - Minimum - 5,1

    - Mean maximum 33,4

    - Mean minimum 3,3 C

    Relative humidity - Mean maximum 87,8 %

    - Mean minimum 56,7 %

    Annual maximum rainfall 1338,1 mm/year

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    The supplier shall be responsible for the storage, inspection, material testing, surface preparation and paint in full compliance with the requirement herein stated.

    Services shall include, but not limited to, the supply and storage of materials and tools to be used, the surface preparation and the application of the necessary primers, intermediate coatings and finish coatings and final touches to the surfaces already painted as well as the performance of applicable inspections and testing,

    The supply of materials shall include the paints to apply defined in this document-, thinners, solvents or any other required additive, devices and tools necessary to prepare the surfaces, apply coatings, make checks and ensure the work quality and the staff safety.

    The following materials, unless otherwise stated, shall not be painted: stainless steel, plastics, tin, brass, copper, chromed metals, glass; special coatings such as rubber, ebonite, varnish, porcelain, etc.; switching mechanisms, commercial or industrial marks or tag plates; insulation, equipment inside parts, unless otherwise indicated; equipment machined parts; galvanized steel unless explicit indication on the contrary and ground connection areas in cabinets, panels, etc.

    Before painting, the supplier shall protect the tag plates, labels, holes, lights and other similar elements to avoid damage during the painting tasks.

    Standard components (see subsection 1.1) can be supplied with their usual protection provided that this process is adequate for the environment of the component in operation, and the manufacturer guarantees in writing the protection integrity during the term indicated in the purchasing documents (see technical conditions that apply to guarantee term in section 12 herein). The manufacturer shall submit all the information requested in this document. Likewise, the supplier shall quote as an alternative one of the paint schemes on subsection 8.1.

    1.1 PAINT AT FACTORY SCOPE The scope of the painting tasks in the factor shall include, but not limited to, the following:

    The components and equipment conditions (situation, insulation status, material and operation temperature) shall be included in all the technical specifications.

    The complete paint system, including the number of layers and thickness of each one, is describe in subsection 8.1 taking into consideration the following factors:

    Corrosion rate as per ISO 12944, Material to be coated Surface temperature Insulation Location and point where the generic products are going to be used

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    Surface preparation type These systems shall apply for the following components:

    a) Pumps and Compressors b) Fans c) Hoists d) Tank inside surfaces (if indicated in the Data Sheet) to be delivered in the site

    completely assembled e) Package equipment delivered in the site complete mounted on the frame f) Any other equipment or component if mentioned in the respective technical

    specification. The following equipment shall be delivered in the site, adequately prepared and painted, except for the finish coating and the zones that shall be welded afterwards, as indicated in subsection 7.6 of this specification:

    Tank exteriors Building structures Bridge or gantry crane beams Filtering systems Condenser Heaters and coolers without insulation Equipment benches In general, any component (except those expressly mentioned) to be welded in the

    site and so indicated in their technical specification.

    The following equipment shall be painted in accordance with the manufacturer standards:

    The electrical equipment and elements (terminal boxes, sealers, control elements, etc.)

    Electrical engines, control panels and electric transformers Check valves external surface Piping and valves shall be painted as follows:

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    Table 1: Paint system for pipes and valves

    Location in plant: Known (at the moment of painting) paint as per subsection 8.1

    Location in plant: unknown (at the moment of painting) follow below instructions:

    1 STEP 2 STEP (after knowing the site and always after the 1st step)

    LOCATION OF THE ELEMENT IN

    THE PLANT

    PROCESS TO APPLY INSULATION TEMPERATURE UNDER NORMAL

    OPERATION

    LOCATION OF THE ELEMENT IN

    PLANT

    PROCESS TO APPLY

    Inside buildings System CS-LU-IC3, subsection 8.1. Priming for patch up, touch up and for finishing

    Unknown when painting

    CS-HI system (general priming)

    NO

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    Tank ferrules that shall be assembled in the site can be provided as follows:

    With no previous paint treatment so all the preparation and painting tasks are made in the site after the tank has been welded. In this case, it is important to consider that inaccessible areas, i.e. the exterior side of the bottoms, shall be dripped and primed before the assembly.

    With surface preparation and prime made in the factory and finishing paint system in the site. In this case, a 5-10-cm wide zone along the welding areas shall be left without prime and shall be protected with adhesive tape, peelable paint or welding prime compatible with the products to be applied after the assembly.

    In the case of units that shall be thermally insulated, see subsection 7.7.

    The supplier of the unit shall send instructions for the final painting and /or the necessary finishing touches in the Site, after the erection.

    Machined interior surfaces shall be supplied with a layer of protective grease.

    1.2 PAINT AT SITE SCOPE The scope of the tasks in the site shall include, but not limited to the application of the complete paint systems as defined in chapter 8, all the components provided without paint and the application of intermediate or finish coatings and / or finishing touches until completing the paint systems defined in subsection 8.1, all the components that require paint, and in general all paint tasks defined in the Specifications Sheet.

    The scope shall also include the preparation and painting of the concrete surfaces in chemical environments that require specific chemical resistance characteristics, such as diked areas, neutralization basins or lab or battery room floor.

    2. REFERENCED DOCUMENTS Open cycle: 10111-P-ET-148 (Rev.6).Paint specification (DSO) This specification is compatible with the one mentioned in the open cycle. For conversion to combined cycle this specification shall be used.

    3. CODES, REGULATIONS AND STANDARDS The following codes and standards shall be considered part of this specification.

    American Society for Testing and Materials (ASTM) Steel Structures Painting Council (SSPC) Register of Colors, RAL

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    International Organization of Standardization (ISO) Normativa Argentina (IRAM) Besides those codes and standards herein mentioned, the supplier shall meet the requirements of all applicable local regulations in force at the date of execution of the contract.

    For the selection of paint systems, their corrosivity and durability categories shall be taken into consideration, as per ISO 12944-1 and ISO 12944-2 standards, respectively. The following categories shall apply to this specification:

    C3 - Interiors: Inside industrial buildings

    C4: - Exteriors: Outside industrial areas

    For water and soil, categories shall be as follows:

    - Im 1 = Fresh water. Components immersed in river, reservoir, pre-treated (non-drinking) water such as water inside tanks, mechanical components or equipment submersed parts of water intake structures.

    - Im 3 = Buried elements. (buried tanks, piping or equipment).

    This specification describes paint systems for equipment or components affected by these conditions and others, such as high temperature, submersed locations or in occasional contact with chemicals or other specific requirements.

    4. GENERAL REQUIREMENTS Surface preparation shall be made in accordance with the latest instructions issued by the manufacturer of the paints to be used and with this specification.

    The manufacturers indication about every product shall be considered. However, this specification shall be also taken into consideration.

    The necessary precautions shall be taken to ensure that the equipment internal surfaces, machined surfaces, mechanisms, etc shall not be contaminated with cleaning products, sand, etc.

    Metal structures or units that must be protected shall be designed as per ISO 12944-3, "Corrosion protection of steel structures by protective paint systems. Design considerations "

    Before starting with the cleaning tasks all mechanical defects shall be removed: exfoliations, weld bead, slots, etc.

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    The paints indicated in subsection 8.1 shall be used depending on the conditions they are going to undergo once applied. Any other paint shall be previously approved by the Purchaser.

    Paints, thinners, etc. shall be delivered in their original packages, closed, sealed and with no sign of damage. Paint and thinner packages shall clearly show the manufacturers brand, designation and expiry date. All products shall be submitted with their respective application and storage instructions.

    Transport and storage shall be made in compliance with the manufacturers instructions. As a general rule, the packages shall be stored indoors, in a ventilated place and protected against fire, at a temperature within 5C of the recommended range of temperature and least 2C over the condensation point. Lighting shall be anti-deflagrant.

    Equipment and structures painted in factory shall include a 10% extra for finishing touches in the site.

    Paint shall be prepared and applied in accordance with the manufacturers instructions and this specification.

    Paint to be used shall be that indicated in subsection 8.2 or the equivalent approved by the purchaser.

    Paint shall meet the environmental applicable regulations, including local ones. Forbidden components such as lead, chrome, etc are not allowed.

    Paint shall not be applied in surfaces in contact with fluids of process, unless otherwise stated.

    4.1 RUST PREVENTION Machined surfaces and other ferrous materials that are not going to be painted shall be protected with a corrosion inhibitor. The corrosion inhibitor shall not negatively affect the quality of the surface. Corrosion inhibitors applied to surfaces in contact with process fluids such as condensate, supply water, steam, etc. shall be soluble in water or VPI-inhibitor vapor phase type.

    Drainage resulting from the elimination of this product shall not contain any product that cannot be poured in the sewage system

    4.2 CATHODIC PROTECTION COMPATIBILITY All paint applied over submersed or buried surfaces shall be compatible with the cathodic protection.

    5. PAINT SELECTION As far as possible, coatings shall meet the following:

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    Coating types shall be as few as possible to cover the highest range of applications. Only standard application products, available in the market, shall be selected. Brands to be used in paint shall be as few as possible. Recommended suppliers are:

    AKZO-INTERNATIONAL PPG/AMERON HEMPEL REVESTA CARBOLINE SHERWIN WILLIAMS

    6. SURFACE PREPARATION

    6.1 CARBON STEEL

    6.1.1 GREASE REMOVAL

    Surfaces shall be cleaned as per SSPC-SP-1 Specification "Solvent Cleaning". The following elements can be used:

    Cloth or brushes soaked in solvents. The final cleaning shall be made with clean cloth or brushed.

    Detergents, with subsequent wash. Thinner in vapor phase. The use of hot detergent or halogenated solvents in vapor phase shall not be allowed in the Site, because they are difficult to handle and more dangerous.

    When solvents are used, the respective safety rules shall be observed, including goggles, ventilation equipment, gloves etc.

    Special precaution shall be taken to avoid contaminating stainless steel surfaces located near the place of work, especially is halogenated cleaning agents are being used.

    6.1.2 CONTAMINATION DUE TO SALTS, ACIDS AND ALKALI

    Chemicals residues shall be removed by washing with warm water or water-jetting (

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    6.1.3 RUST REMOVAL

    Rust shall be removed from a surface when it can be painted within the 8 hours after the cleaning and in no case the clean surface shall be left overnight without painting. If rust appears again, the surface shall be blast-cleaned again.

    6.1.3.1 Blast-cleaning

    Rust removal shall be made by means of blast-cleaning procedure in accordance with SSPC-SP specification for the degree defined for the selected paint system. After the surface has been prepared, its aspect shall match the figure of ISO-8501 standard.

    Blast-cleaning shall not damage or distort the surface.

    The abrasive to be used shall be clean, dry and free from contaminants and soluble salts and shall meet the applicable SSPC-SP standards and the ISO 8501, ISO 8502 and ISO 8503.

    The blast-cleaning in areas in contact with demineralized water or condensate shall be made with crushed steel and not sand, to avoid the surface contamination with silica.

    The abrasive granulometry shall be within the range mentioned in the respective standards and shall allow that, after the cleaning, the roughness of the surface is the one recommended by the paint manufacture, between 25 y 50 m, depending on the thickness of the paint to apply.

    After the blast-cleaning, dust shall be removed with air blowing free of oil and water, vacuum and/or brushing.

    Surface preparation through abrasive blast-cleaning may be used in certain environments at the Purchasers discretion to give more protection against sparks, minimize atmospheric and surface pollution and prepare the surfaces with saline contamination that spend a lot of time under wet conditions. The manufacturer of the paint to be used on the surface shall confirm that the wet blast-cleaning is the best option.

    The compressors shall supply air free of oil and water with the necessary flow and at the required pressure in the nozzle.

    6.1.3.2 Mechanical or manual brushing

    This method is used in surfaces where the blast-cleaning cannot be performed and with the Purchasers approval, for repairs and touch-ups of small damaged areas. The final aspect of the surface shall be equivalent to the cleaning degree of ISO-8501 standard defined in every case.

    It will be also used to achieve the proper roughness in white steel plate surfaces (cold rolled steel).

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    6.1.3.3 Chemical cleaning

    Rust removal using chemical cleaning (pickling bath, etc.) shall require the express Purchasers approval

    6.2 PREVIOUSLY COATED STEEL SURFACES

    6.2.1 DEFECTIVE SURFACES

    If the defects to be repaired are small clearly identified areas, they will be brushed with a mechanical brush until reaching a firm paint coating or the bare metal and then, after cleaning the dust, the appropriate paint system shall be applied.

    If the defects to be repaired represent more than the 20% of the painted surface or are distributed all over the surface (notwithstanding the percentage), all the defective coatings shall be removed and the total surface shall be prepared and painted in accordance with this specification.

    6.2.2 WELDED JOINTS AND SCREWED AREAS

    All joints and weld beads shall be continuous as per 12944-3 and if this is not possible the spaces shall be sealed with polyester or acrylic repaintable filler in both sides of the joint.

    After welding, the surface shall be cleaned and brushed before paint. All welding residues shall be removed, such as burned paint, test residues, etc. The welded area shall be prepared to be painted with the same paint system as the rest of the component.

    In screwed joints, after tightening the joint, the entire perimeter shall be sealed with acrylic or polyester repaintable filler, compatible with other paint coatings.

    In this type of joints, plasticized paint that may be serve as lubricant is not allowed.

    6.2.3 NON-DEFECTIVE SURFACES

    If it is necessary to finish these surfaces, the painted surface shall be cleaned with solvents adequate for the type of paint with cloth or brushes. If the type of paint is unknown, tests shall be made in small areas with different solvents or detergents to find out the one that best cleans the surface without damaging the coating. If the surface is too smooth, it should be slightly sanded or brushed to achieve a slight roughness that facilitates the application of paint. The surface shall be clean and dry to apply the paint.

    6.3 GALVANIZED STEEL

    6.3.1 NEW GALVANIZED STEEL

    These surfaces shall be cleaned with a suitable detergent and then rinsed with fresh water. Oil and grease shall be removed with solvents.

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    If the surface is too smooth, blast-cleaning or very slight brushing shall be performed to achieve a slight roughness. Afterwards, after approval, a well-known special adhesion epoxy primer shall be applied.

    6.3.2 AGED GALVANIZED SURFACES

    Zinc products and contaminants shall be cleaned with water and detergents. After cleaning and approval, a well-known special adhesion epoxy primer shall be applied.

    6.3.3 SURFACE WITHOUT ZINC COATING IN SOME AREAS

    These surfaces shall be locally cleaned by blast-cleaning process or slight brushing, carefully avoiding removing the zinc coating near the zones to be repaired. After cleaning, a well-know special adhesion zinc powder primer shall be applied,

    The rest of the surface shall be also painted with a well-known special adhesion primer to then apply the respective finish coating.

    6.4 COLD-ROLLED STEEL For thickness > 3 mm an abrasive blast-cleaning shall be performed, until achieving a Sa2 degree in accordance with ISO 8501 standard.

    For thickness 3 mm degreasing and phosphating shall be carried out an then, if necessary, cleaning shall be completed with a slight blast-cleaning to achieve the necessary roughness to apply paint..

    6.5 STAINLESS STEEL AND SLIGHT ALLOYS Only if it is specially required to paint these materials, the following steps will be followed:

    Degrease the surface with fresh water and mild detergent, brush with non-metal brushes, if necessary, to avoid any contamination.

    Afterwards, slight blast-cleaned preferably with corundum or glass sphere. If this is not possible, use dry, fine-coarse silica sand (it shall not be used on surfaces in contact with process fluids). After blasting, the surface shall be vacuumed to eliminate all residues. Medium roughness of the irregularities shall be within 15-30 m.

    Stainless steel materials shall be kept in clean places and shall not be in contact with carbon steel, low alloy steels of low melting point metals. Piping, accessories and equipment made of this material shall be properly packed and after assembly they shall be protected against splash, dirt or dust caused by works made in carbon or low alloy steels in the surroundings.

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    6.6 CONCRETE AND CEMENT SURFACES

    6.6.1 GENERAL

    Cure new concrete and cement for at least thirty (30) days before painting.

    Before painting, it will be checked that there is no leak or moisture that may not allow a good adherence. If there is moisture or leak, the paint manufacturer shall provide a compatible sealing coating that may be applied before painting to cover the entire surface.

    The supplier shall ensure, before the application of paint, that both the paint and the form-release products used are compatible.

    Before cleaning the surfaces, all burrs, rough edges, etc. shall be removed with a polishing machine, abrasive discs, etc.

    In vertical locations, walls, columns, etc, before applying the coating all defects (such as nest, mineral pockets) shall be removed, to achieve a smooth coating, free of pores and cracks. It is necessary to apply filler that covers the surface but do not sink so, after drying, it can be worked with a polisher.

    Concrete surfaces shall be prepared and coated always following the manufacturers instructions.

    6.6.2 CLEANING

    To clean cement and concrete a slight abrasive blasting shall be performed and afterwards dust will be vacuumed or air-pressure cleaned.

    7. PAINT APPLICATION

    7.1 GENERAL The surface, before the application of the coating, shall be perfectly prepared in accordance with the coating to be applied and the requirements of this specification as regards cleaning degree, rust and roughness removal degree.

    The coatings to be applied on the same surface (priming, intermediate and finish) shall be from the same manufacturer and compatible. This also applies to any touch-up and factory priming. Before the application of a paint coating, the previous one shall be clean and free from foreign matters and in proper curing conditions.

    The manufacturers recommendations as to painting intervals shall be followed and normally the absolute minimum shall be observed in order to avoid contamination between coatings. In case of contamination between coatings, it will be completely removed by cleaning with detergent and rinsing with fresh water.

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    During the performance of the tasks, all edges, corners, discontinuous surfaces, etc shall be carefully coated and the viscosity required by the application method used shall be met (paintbrush, spray gun, etc).

    In exterior corners and edges a previous coating shall be applied before painting the whole unit.

    Piping shall be painted overlapping a 50% of the new coating with the previous one to avoid less thick areas.

    As a general rule, primers shall be applied only with paintbrush or airless gun.

    Two or more layers of the same paint on the same surface shall be applied in both directions and each layer in a different tone, as to ensure a complete coating of the surface for every layer. The first primer coating shall have a color different from the steel where it is applied.

    Recommended temperature and humidity conditions given by the manufacturer shall be taken in consideration to apply the paint. As a general rule, paint shall not be applied in these cases:

    Room temperature under 5C (for epoxy and polyurethane room temperature shall be >10C).

    If it is foreseen that temperature may fall below 0C before the paint is dry. When the metal temperature is < 5C over the air dew point Room temperature over 50C (for epoxy and polyurethane room temperature shall

    not be above 35C).

    Relative humidity above 85% Rain, ice, snow or mist. Wind speed above 20 Km/h Daylight exposure Presence of dust and gas No paint shall be dried under conditions that may affect the substrate, the paint films and/or the adherence between them.

    Special precaution shall be taken to avoid damage or stain on the units interiors

    After all painting tasks are finished, all masking tapes shall be removed and it will be carefully checked that there are no instruments, tools, pieces of cloth, paper, screws, etc left inside the unit elbows, orifices, etc.

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    7.2 SAFETY REGULATIONS During paint application, the respective safety rules shall be observed. The area shall be ventilated and NO SMOKING signs shall be visible. The devices use shall not emit sparks. Operators shall wear gloves, goggles or masks if necessary to avoid the inhalation or contact of the skin with toxic products

    The supplier shall be responsible for the safety of his staff, as well as for the observance of the safety legal requirements applicable both in the factory and in the site.

    7.3 FILM THICKNESS The paint film thickness indicated shall be strictly observed. Unless disposition on the contrary, they refer to dry film thickness. Thickness values are described in subsections 8.1 y 8.2.

    7.4 REPAIRS All defects on painted surfaces, such as insufficient adherence, mechanical damage, bubbles, inclusions, breaks, etc shall be removed so the finish coating shall meet the required specifications.

    All defective areas shall be completely cleaned, including those areas adjacent to the defect in about 100 mm. The surface shall be visually inspected before painting.

    If the defects to be repaired represent more than the 20% of the painted area or are distributed all over the surface (notwithstanding the percentage), all defective paint coatings shall be completely removed and the surface shall be prepared and painted as per this specification requirements.

    7.5 INACCESSIBLE AREAS AFTER ASSEMBLY Surfaces that will be inaccessible after the erection (welded beam faces, floor under equipment, exterior bottom or vertical tanks, etc) shall be painted with the complete selected paint system when they still are accessible either in the site before erection or in the factory if they become inaccessible when delivered in the site..

    Steel parts embedded in concrete shall be only painted on the transition zone.

    Steel surfaces that shall be contact with a continuous weld bead (sealed) shall not be painted.

    7.6 SURFACES TO BE WELDED AFTER PAINTING In those surfaces that will be welded after painting, a 30-50 mm band (depending on the thickness of the plate to be welded) shall be left without paint and adjacent to the edge to be welded. This band shall be protected against corrosion with a zinc silicate shop-primer, 20-30-m thick, or with peelable varnish or adhesive paper until the moment of welding.

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    After welding, the band shall be prepared and painted, even the welded area, in accordance with the specification.

    7.7 INSULATED SURFACES Surfaces with a maximum operation temperature between 93C y 400C shall be prepared and painted with 70 m zinc inorganic silicate, ethyl-base, resistant to the components maximum operation temperature, (see subsection 8.1).

    7.8 GALVANIZED, STAINLESS STEEL OR ALUMINUM SURFACES These materials shall not be normally painted. They will only be coated with paint under these conditions:

    Exposure to chemicals or other environments if the material is not resistant to them. Signaling needs. Before the application of the paint system, the surface shall be treated as indicated in subsection 6.3 in the case of galvanized steel or 6.5 if it is stainless steel or aluminum, cleaning and priming it with 35-40 m of epoxy primer followed by the respective paint system (interior or exterior) except for the primer.

    If these surfaces need to be painted to improve their corrosive properties, the CS-LU-IC3 system in subsection 8.1 shall be applied for components assembled in interiors and the CS-LU-WC4 or CS-LU-WC4-ALT shall apply for components located outdoors, except in the case of priming (application in accordance with the specifications of this subsection).

    If these surfaces need to be painted due to signaling requirements (visual requirements) only a 40 m coating of aliphatic polyurethane varnish shall be applied over the epoxy primer as indicated herein.

    7.9 SUPPORTS Support components can be hot-dip galvanized products when the maximum operation service is below 400C. They shall be painted if they met the conditions of 7.8.

    Those components provided already painted shall meet the conditions of subsection 1.1 for piping and valves.

    7.10 CONCRETE The scope of the concrete coatings under this specification only limits to those surfaces exposed to chemical attack, such as diked areas, chemical drain wells neutralization basins or lab or battery room floor.

    In general for the selection of the correct paint, it must be checked that it is resistant to the chemical reactive it may be exposed to in the location.

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    Application shall be made in accordance with the paint suppliers recommendations, especially as regards repairs, thickness and sealing coatings.

    In the case of coatings for diked areas and gutters, a sealing coating shall be applied to eliminate pores and it shall be compatible with the subsequent coating, as well as an epoxy coating, without solvent of a 300-micra thickness (theoretical performance of about 1 l/m2 depending on the paint).

    The need of coating the basins concrete surfaces (effluents and neutralization) shall be mentioned in the respective building drawings. The coatings shall depend on the concentration of the chemicals and their temperature in the basin.

    If the surface to be painted is a passable floor, the necessary loads indicated by the paint manufacturer shall be added to avoid slippery.

    8. PAINT SCHEMES

    8.1 COATING SYSTEM SELECTION Below there is a table with the complete paint system to apply, depending on the conditions and the material.

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    MATERIAL AND CONDITIONS

    CORROSIVITY (ISO 12944-2) EQUIPMENT

    SYSTEM IDENT (1) PROCESS

    DRY THICKNESS m GENERIC PRODUCTS

    CARBON STEEL WITH SERVICE

    TEMPERATURE OF

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    MATERIAL AND CONDITIONS

    CORROSIVITY (ISO 12944-2) EQUIPMENT

    SYSTEM IDENT (1) PROCESS

    DRY THICKNESS

    m GENERIC PRODUCTS

    HIGH TEMPERATURE CARBON STEEL

    N/A

    > 93 C up to 400C

    (external surfaces of piping, valves chimney

    etc)

    INSULATED CS-HI

    Finish coating Sa 2

    Priming 70 Zinc silicate

    Total 70

    > 93 C up to 205C

    (external surfaces of piping, valves chimney

    etc)

    UNINSULATED

    CS-HU

    Finish coating Sa 2

    Priming 70 Zinc silicate

    Finish coating. 40-50 Acrylic silicone

    Total 110-120

    > 400C up to 600C (external surfaces of piping, valves, etc)

    INSULATED CS-VI General cleaning: transport temporary painting

    > 205C up to 600C (external surfaces of piping, valves, etc)

    UNINSULATED CS-VU

    Finish coating Sa 2

    Finish coating. 2 x 25

    Aluminum silicone with a resistance up to 600C

    Total 50

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    MATERIAL AND CONDITIONS

    CORROSIVITY (ISO 12944-2) EQUIPMENT

    SYSTEM IDENT (1) PROCESS

    DRY THICKNESS

    m GENERIC PRODUCTS

    CARBON STEEL AT ROOM

    TEMPERATURE AND SUBMERSED

    (All these systems shall be compatible

    with cathodic protection)

    Im1/Im3

    Raw water (non drinkable) or buried elements (inside tanks, submersed areas of vertical pumps or

    equipment and buried pumps, etc) CS-LU-ImR

    Finish coating Sa 2

    Priming (2) 40 Polyamide epoxy primer

    Finish coating 3 x 120

    Solid-rich epoxy (service immersion)

    Total 360-400

    Drinkable or demineralized water (tank

    interiors, etc) CS-LU-ImP

    Finish coating Sa 2

    Priming (2) 40 Polyamide epoxy primer

    Finish coating

    400 ( 2 x 200)

    100% solid epoxy coating Certificate is necessary for water

    tank coating as well as Bresle test (max. 2-3 g/cm2, to verify with the

    product technical sheet)

    Total 400-440

    N/A Diesel oil (4) CS-LU-ImG

    Finish coating Sa 2

    Priming (2) 40 Polyamide epoxy primer

    Finish coating 2 x 150 Amina or Phenolic epoxy

    Total 300-340

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    MATERIAL AND CONDITIONS

    CORROSIVITY (ISO 12944-2) EQUIPMENT

    SYSTEM IDENT (1) PROCESS

    DRY THICKNESS

    m GENERIC PRODUCTS

    NON-BLASTING METAL SURFACES

    N/A Cold-rolled steel (electric cabinets, panels, etc)

    LS-LU-I LS-LU- W

    Finish coating: see section 6.4

    Surface coating

    > 80 Polister or epoxi, dried at high temperature

    Total >80

    N/A Galvanized steel, aluminum, stainless steel surface GS-LU-I GS-LU-W

    Finish coating: see section 6.3

    Priming 35-40 Polyamide epoxy primer for smooth surfaces

    Interm. and/or surface coating

    See paragraph 7.8 of this specification

    Total See paragraph 7.8 of this specification

    CONCRETE SURFACE

    N/A Concrete with chemicals or water effluents (chemical tank dry basins, drain basins for chemical

    products, etc) (see paragraph 7.10)

    CO-L-Im Concrete conditions: hardened and dry, with no remains of oil or grease

    Finish coating: sanded and cleaned with vacuum machine and treated with diluted HCI if the surface is smooth.

    Sealed Epoxy or polyester sealing shall be applied to the concrete joins. Sealing shall be elastic and shall allow touch-ups

    Priming 35 - 40 Dilute epoxy layer with a consumption between 0,2 and 0,3 kg/m2 (approx.)

    Surface coating

    >300 Epoxi coating 100% solids or similar approved for service

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    NOTES (1) SYSTEM IDENTIFICATION: XX-YY-ZZZ, where, XX = Material; YY = Temperature of service or fire stability and ZZZ = Localization or service

    Material to be coated Maximum surface temperature of service / insulation Localization and/or services

    CS Carbon steel V Very high

    I Insulated I Interior (characters below refer to the corrosivity degree as per ISO 12944)

    LS Cold-rolled steel H High U uninsulated W Exterior and slightly protected (exposed to the open air) (characters below refer to the corrosivity degree as per ISO 12944)

    GS Galvanized steel, stainless steel, light aluminum alloys

    L Low Im Immersion (raw salty water, drinkable or demineralized or (G) diesel oil)

    CO Concrete

    (2)Primer to apply if the blasted surface shall be protected before the application of the surface coating.

    (3) Optional paint system to be used in equipment, structures or piping to be completely painted in the factory and safely transported to the site (avoiding blows that may damage the paint system applied).

    (4) Only the tank bottom shall be painted and a 500 mm high from this bottom..

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    8.2 COMMERCIAL PAINTS

    The following tables show the commercial paints of suppliers identified in subsection 5 of this specification.

    SYSTEM SPECIFICATED SYSTEMS MANUFACTURERS PAINT SYSTEMS

    Coating Thickness (dry) m Generic

    paint AKZO-

    INTERNATIONALPPG/

    AMERON HEMPEL SHERWIN WILLIAMS REVESTA CARBOLINE

    CS-LU-IC3

    Primer 70 Zinc-rich epoxy INTERZINC 52 AMERCOAT

    68 G HEMPADUR ZINC

    17360/15360 SUMAZINC 276

    (***) REVESTA 31 CL 655 R

    Surface coating 100

    Polyamide epoxy

    INTERGARD 475HS

    AMERCOAT 385

    HEMPADUR MASTIC 45880/1

    MACROPOXY 646 o

    SUMADUR FC REVESTA 340 CG 890 SG/CG 885

    Total 170

    CS-LU-WC4

    Primer 70 Zinc-rich epoxy INTERZINC 52 AMERCOAT

    68 G HEMPADUR ZINC

    17360/15360 SUMAZINC 276

    (***) REVSTA 31 CL 655 R

    Intermed. 90 Polyamide epoxy INTERGARD

    475HS AMERCOAT

    385 HEMPADUR MASTIC

    45880/1

    MACROPOXY 646 o

    SUMADUR FC REVESTA 340 CG 893

    Surface layer 40

    Aliphatic polyurethane

    INTERTHANE 990

    AMERCOAT 450S

    HEMPATHANE CAPA SUPERFICIAL 55210 HEMPATHANE HS

    55610

    SUMATANE 355 REVESTA 290 CTH 133 HB

    Total 200

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    SYSTEM SPECIFICATED SYSTEMS MANUFACTURERS PAINT SYSTEMS

    Coating Thickness (dry) m Generic

    paint AKZO-

    INTERNATIONALPPG/

    AMERON HEMPEL SHERWIN WILLIAMS REVESTA CARBOLINE

    CS-LU-WC4-ALT (3)

    Primer 200 Solid-rich epoxi INTERSEAL 211

    HS AMERLOCK

    400 HEMPADUR MASTIC

    45880/1

    MACROPOXY 646 o

    SUMADUR FC

    REVESTA 340/REVESTA

    400 CG 890

    Surface coating 60

    Aliphatic polyurethane

    INTERTHANE 990

    AMERCOAT 450S

    HEMPATHANE CAPA SUPERFICIAL 55210 HEMPATHANE HS

    55610

    SUMATANE 355 REVESTA 290 CTH 133 HB

    Total 260

    CS-LI Primer 70 Zinc-rich epoxy INTERZINC 52

    AMERCOAT 68 G HEMPADUR ZINC 17360

    SUMAZINC 276(***) REVESTA 31 CL 655 R

    Total 70

    CS-HI Primer 70 Zinc silicate INTERZINC 22 DIMETCOTE 9

    HEMPELS GALVOSIL 15700/15780 ZINC CLAD 61

    REVESTA D 9FT CZ 11 FG

    Total 70

    CS-HU

    Primer 70 Zinc silicate INTERZINC 22 DIMETCOTE 9 HEMPELS GALVOSIL

    15700/15780 ZINC CLAD 61 REVESTA D

    9FT CZ 11 FG

    Surface coating 40-50

    Acrylic silicone (205 C)

    INTERTHERM 875

    AMERCOAT 891

    HEMPELS SILICONA ACRILICA 56940

    SUMATHERM HS 550 (8)

    REVESTA 67/2 ---

    Total 110-120

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    SYSTEM SPECIFICATED SYSTEMS MANUFACTURERS PAINT SYSTEMS

    Coating Thickness (dry) m Generic

    paint AKZO-

    INTERNATIONALPPG/

    AMERON HEMPEL SHERWIN WILLIAMS REVESTA CARBOLINE

    CS-VU

    Surface coating 2 X 25

    Aluminum silicone (600 C)

    INTERTHERM 50 SILICOFER 600 HEMPELS 56910 ALUMINIO 19000

    SUMATHERM HS 550

    (until 550 C)

    REVESTA 650 HEAT

    THERMALINE 4700

    Total 50

    CS-LU-ImR

    Primer (2) 40

    Polyamide epoxy INTERGARD 291

    AMERCOAT 71

    HEMPADUR 15400/ HEMPADUR 85210

    MACROPOXY 646 o

    EURONAVY ES 301

    REVESTA 340 NF CG 888

    Surface coating 3 X 120

    Solid-rich epoxy

    INTERSEAL 670 HS/ INTERZONE

    954

    AMERCOAT 385

    HEMPADUR 15400/ HEMPADUR 85210

    MACROPOXY 646 o

    EURONAVY ES 301

    REVESTA 400/118VI CG 891

    Total 360 - 400

    CS-LU-ImP

    Primer (2) 40

    Polyamide epoxy INTERLINE 982

    AMERCOAT 71

    HEMPADUR 15590

    EURONAVY ES 301

    REVESTA 340 NF CG 888

    Surface coating

    400

    100% solid epoxy INTERLINE 910

    AMERCOAT 610

    HEMPADUR MULTISTRENGH 35530/

    HEMPADUR 35560

    EURONAVY ES 301

    REVESTA 118VI/400 PL 4500 S

    Total 400 - 440

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    SYSTEM SPECIFICATED SYSTEMS MANUFACTURERS PAINT SYSTEMS

    Coating Thickness (dry) m Generic

    paint AKZO-

    INTERNATIONALPPG/

    AMERON HEMPEL SHERWIN WILLIAMS REVESTA CARBOLINE

    CS-LU-ImG (4)

    Primer (2) 40

    Polyamide epoxy INTERLINE 982

    AMERCOAT 71

    HEMPADUR 85210/ HEMPADUR 15400/

    PHENICON HS(***)

    REVESTA 340 NF PH 187 fdo.

    Surface coating 2 x 150

    Amina or phenolic epoxy

    INTERLINE 850/ INTERLINE 975

    AMERCOAT 610

    HEMPADUR 85210/ HEMPADUR 15400/

    PHENICON HS(***)

    REVESTA 118VI PH 187 Ac.

    Total 300- 340

    LS-LU-I LS-LU-

    W

    Surface coating >80

    Polyester or epoxy

    powder --- ---

    (Alternative with liquid paint)

    HEMPADUR 45880/1 (80/100 m) +

    HEMPATHANE TOPCOAT 55210/55610

    (50-75 m) (**)

    --- ---

    (Alternative with liquid

    paint) 893 SG

    (80/100 m) + CTH 133 HB

    (40m)

    Total >80

    GS-LU-I GS-LU-

    W

    Primer 35 - 40 Polyamide epoxy INTERGARD 291AMERCOAT

    71 HEMPADUR 15570 SUMADUR SP

    530 --- CG 888

    Surface coating Same as CS-LU-IC3 or CS-LU-WC4. Depending on the location in site (see section 6.9)

    Total

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    SYSTEM SPECIFICATED SYSTEMS MANUFACTURERS PAINT SYSTEMS

    Coating Thickness (dry) m Generic

    paint AKZO-

    INTERNATIONALPPG/

    AMERON HEMPEL SHERWIN WILLIAMS REVESTA CARBOLINE

    CO-L-Im (5)

    Sealing Polyester or epoxy INTERGARD 740 --- HEMPADUR SEALER

    05990 (diluted with THINNER 08450)

    SUMADUR JF (7) --- CL 1340

    Primer 35 - 40 Diluted epoxy --- NUKLAD

    105 SHER TILE

    CLEAR HS BR REVESTA 400 ---

    Surface coating >300

    100% solid epoxy INTERLINE 910 ---

    HEMPADUR 85210/ HEMPADUR 15400/

    HEMPADUR 85671 (*)

    NOVA PLATE UHS (6) o COR

    COTE HCR

    REVESTA 400 (6) /204 PL 4550 S

    Total 335 (*) Three (3) 75-m thick each dry coatings shall be applied (**) Total thickness dry 120 m (***) In new steel degree Sa 3 blasting is required

    NOTES (1) N/A.

    (2)Primer to apply if the blasted surface needs protection before the surface coating

    (3) Optional paint system to be used in equipment, structures or piping to be completely painted in the factory and safely transported to the site (avoiding blows that may damage the paint system applied).

    (4) Only the tank bottom shall be painted and a 500 mm high from this bottom..

    (5) In each case, the manufacturer shall confirm if the paint is adequate for the chemical and temperature the surface shall be protected against.

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    (6) Only for water or neutral aqueous solutions.

    (7) Valid for horizontal surfaces.

    (8) Aluminum silicone, only available in color aluminum.

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    9. COLORS Finish colors shall be the following:

    9.1 EQUIPMENT AND STRUCTURE

    Components Color Code

    IRAM DEF D 10-54

    Code RAL

    Mechanical Pumps Work fluid color

    (see subsection 9.2) or standard

    -

    -

    Compressors Work fluid color (see subsection 9.2) or standard

    -

    -

    Supports Grey 09-1-060 7046 Frames Grey 09-1-060 7046 Uninsulated valves and piping and with a maximum service temperature of 93 C (except for PCI)

    Identifying color (6.12.2)

    - -

    PCI Equipment, piping and valves Red 03-1-080 3001 Piping and valves with temperature higher than 93 C uninsulated

    Aluminum (*) - -

    Ventilation equipment Grey 09-1-060 7046 Tanks White 02-1-040 9010 Pressure vessels White 02-1-040 9010 Benches and structures in mechanical equipment Grey 09-1-060 7046 Crane bridge Yellow 05-1-020 1023 Electric Electric elements and equipment (distribution boxes, sealers, control elements)

    Manufacturer standard

    - -

    Electric engines and motor panels Manufacturer standard

    - -

    Electric transformers Manufacturer standard

    - -

    Instrumentation Control and instrumentation devices Manufacturer

    standard - -

    Civil Metal structures Grey 09-1-060 7046 Safety bars and stairs yellow 05-1-020 1023

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    (*) See paint system CS-HU subsection 8.1

    9.2 PIPING AND VALVES In the case of valves (through base color) and uninsulated piping and with a maximum service temperature of 93C the following finish colors shall be applied (as per IRAM DEF D 10-54 standard) depending on the fluid carried.

    Fluid

    Color Code IRAM DEF D 10-54 Code RAL Base Band

    Service water Green 01-1-120 6010 Fire water Red 03-1-080 3001 Raw water Green Black 01-1-180 11-1-070 6002 9005Pre-treated water Green Grey 01-1-180 09-1-060 6002 7046Drinkable water Green 01-1-120 6010 Demineralized water Green Yellow 01-1-120 05-1-020 6010 1023Instrumentation air Blue 08-1-070 5009 Service air Blue White 08-1-070 02-1-040 5009 9010Nitrogen Blue Orange 08-1-070 02-1-020 5009 2009Electricity Black 11-1-070 9005 Gas vent Yellow Orange 05-1-020 02-1-020 1023 2009Air vent Blue White 08-1-070 02-1-040 5009 9010Drain Ochre 06-1-020 8001 Fuel gas Yellow 05-1-020 1023 Fuel oil Yellow Dark

    brown 05-1-020 07-1-120 1023 8011

    Lube oil Brown 07-1-120 8002

    10. IDENTIFICATION

    10.1 IDENTIFICATION BANDS The previous band color codes shall be painted with a 6-meter distance between them, in the straight sections, on each side of the valves, connections, piping changes of direction, and next to floors, ceilings or walls the piping passes through, on the straight tubing, or on both sides of valves, tees, elbows and crossings of ceilings, floors or walls. Likewise, a 10 cm space shall be left between the connection or valves intake and the respective band, as well as the bands of the same group.

    The piping flow direction shall be identified, if, required, with an arrow that shall be painted or marked with a sticker over each side of the band and 100 mm far from the valve flange or equipment connection.

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    In piping supported by a wall, flow direction bands shall be painted on the side that shall be visible from the work place. The width of the band shall depend on the piping external diameter, as shown in this table:

    TYPE INSULATION OR

    PIPING EXTERNAL DIAMETER (mm)

    BAND WIDTH ARROW

    Base Color (mm)

    Band color (mm)

    Length (mm)

    Axis width (mm)

    1 D 50 mm 200 100 80 10 2 50 < D 150 mm 300 150 100 15 3 150 < D 250 mm 600 250 150 20 4 D > 250 m 800 350 200 25

    The length of the arrow that shows the flow direction shall be also limited by the piping external diameter shown in the table.

    In insulated piping, two bands shall be painted with 100 mm distance between them. The main band shall be of the base color indicated in subsection 9.2 and the secondary band shall be of the band color indicated in subsection 9.2. If there is no band color only one main band shall be painted.

    10.2 EQUIPMENT IDENTIFICATION The proportions per type of letters and name to be used shall correspond to HELVETICA or SWISS 721 BT font that can be found in Windows programs and applications.

    Type height (mm)

    Width (mm)

    1 70 40 2 280 160 3 498 280 4 700 400

    Letter and numbers shall be black.

    11. INSPECTION

    11.1 GENERAL All surfaces that shall be painted must be inspected before and after the tasks.

    The suppliers Inspection Service shall have access at any time to the place where the tasks are performed, as well as to the records to inspect any work stage.

    The inspector shall inform the purchaser of any deviation to the paint manufacturers instructions or to this Specification to determine the measures to be taken.

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    11.2 INSPECTION DEVICES The supplier shall have the necessary equipment and standards for the inspection and control of the tasks, such as humidity gauges, surface thermometers, cotton cloth to check the absence of water an oil in the compressors air, ISO 8501 visual standards, roughness gauges, dry and wet film thickness gauges etc..

    Testing devices shall be calibrated as many times as necessary.

    11.3 INSPECTION STAGES The inspection of coatings both in factory and site shall include all stages that may affect the paint performance. The following shall, at least, be inspected:

    Storage, surface preparation, mixture, application and curation. It includes cleaning conditions and the suitability of all tools and devices to be used.

    Material reception. It includes the inspection of packages, documents attached to packages and storage conditions.

    Suitable environmental conditions both in preparation of surfaces and paint application as well.

    Substrate before and after the surface preparation. It shall be inspected as per ISO 8501, and the applicable SSPC, recording the surface status before and after preparation. Also, the roughness achieved shall be inspected.

    Preparation, mixture and application of every type of paint and coatings determined, in accordance with the paint manufacturers instructions.

    After painting the surface, a visual inspection shall be carried out, regarding: - Bites - Blisters and bubbles - Color and gloss uniformity (only in finish coatings) - Lack of drops - Scratches - Thickness of dry coating - Continuity and uniformity - Surface contamination - Mechanical damage

    No defects shall be accepted

    The thickness of dry film shall be measured, as per en 11.4.

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    11.4 THICKNESS MEASUREMENT Thickness shall be measure with suitable devices (magnetic gauges), and in accordance with SSPC-PA-2 standard. No measurement in one point (three readings average) shall be lower to the 80 % of the defined thickness. Thickness per coating 1,3 higher than the one defined shall be only allowed with the manufacturers previous authorization in writing.

    11.5 ADHESION TESTING In the case of submersed surfaces, traction adherence tests shall be carried out as per ISO 4624 with a 2,5 MPa load.

    11.6 DETECTION OF DISCONTINUITIES Painted steel surface that will be immersed during operation shall be inspected with a high voltage detector to check the film continuity.

    11.7 REJECTION Those surfaces where the coating and /or application do not meet the requirements of this Specification, including the referenced standards where they are applicable and /or the purchasers requirements, shall be rejected.

    11.8 DOCUMENTATION Besides those requirements included in subsection 13 of this document, the purchaser shall not accept the paint if the documentation has not been specially approved for buildings or piping structures assembled in the site or very big components.

    12. WARRANTY

    12.1 WARRANTY TERM The warranty term of coatings as regards defects and /or compliance with the specified conditions shall be determined in the purchase documentation.

    The warranty term shall start from the acceptance of a component by the Purchasers Inspection Services.

    It will be considered that a coating has passed the warranty term when at the end the oxidation on the surface is not higher than degree R 10 (0% of surface with rust) of ISO 46288-3 Evaluation of degradation of paint coatings.

    If during the warranty term defects are found in the surface preparation, composition or application of paint systems, the supplier shall remove and repair the defective paint on his account. After these repairs, a new warranty term shall start for one (1) year, maximum, to run from the expiration date of the original term. Repairs shall not affect the schedule of the rest of the tasks.

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    12.2 PAINT IN SITE OVER COATING APPLIED IN FACTORY Before painting in the site over a surface already painted in the factory, the supplier shall inspect the surface and the guarantee shall cover the complete paint system. If after the inspection the supplier rejects the guarantee, it shall inform the purchaser in writing about the reasons for the rejection.

    12.3 PAINT APPLIED IN FACTORY If defects are found in the surface preparation, composition or application of paint systems, the supplier shall remove and repair the defective paint on his account. All defects found within the warranty term shall be removed and the surface shall be repaired with no extra charge and without affecting the scheduled of the rest of the tasks.

    13. HANDLING AND APPROVAL OF DOCUMENTS

    13.1 WORKS IN FACTORY

    13.1.1 TENDER

    The supplier shall include in his tender the procedures for Preparation and Painting of surfaces (as per format n 1 of Annex A of this specification), together with the information related to the method of paint and inspection within his scope.

    All exceptions to this Specification shall be listed.

    13.1.2 AFTER AWARD

    After the award, the supplier shall submit for approval the procedure as per format n 1 of Annex A. Likewise, records as per formats n 1, 2 y 3 of Annex A shall be left at the purchasers disposal, or his agents and /or authorized entities.

    One (1) procedure for Preparation and Painting or Surface (as per format) shall be submitted for every different paint system applied to a component

    The approval of the Procedures shall not release the supplier from the performance of inspections and keeping of necessary records during the performance of the tasks.

    13.2 WORKS IN SITE

    13.2.1 TENDER

    The supplier shall submit the procedures for the preparation of surfaces for all types of surfaces and the procedures for painting for all types of paints he shall be using in the site, as well as the necessary touch-ups. The manufacturer included in the tenders shall be duly authorized, included in subsection 8.2.

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    13.2.2 AFTER AWARD

    After selecting the paint manufacturer and the supplier, the latter shall be responsible for keeping a record with the required documentation.

    This documentation shall include:

    Surface preparation and painting (Format n 1 of annex A) Repairs (Format n 2 of Annex A) Paint acceptance (Format n 3 of Annex A) Daily record of tasks performed Record of inspections performed.

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    ANNEX A

    FORMATS

    N 1: SURFACE PREPARATION AND PAINTING

    N 2: REPAIRS

    N 3: PAINT ACCEPTANCE

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    DATE:

    PROCEDURE N: FORMAT N 1 SURFACE PREPARATION AND PAINTING

    (To be filled in by the SUPPLIER) pages

    (if filled in as a record, the actual date obtained during the tasks shall be recorded)

    Page 1 of 3 SUPPLIER

    1.0 General 1.1 Technical specification of unit n

    1.2. Unit identification

    1.3 Component

    1.4 Substrate (material)

    2.0 Surface preparation

    2.1 Blasting degree (ISO 8501):

    2.2 Abrasive type and size

    2.3 Surface roughness

    2.4 Other preparation method

    3.0 Priming (1er coating)

    3.1. Paint identification

    3.2 Product generic type

    3.3 Film thickness per coating (m) 3.4 N of coatings

    3.5 Application method

    3.6 Color

    4.0 Intermediate (2 coating)

    4.1 Paint identification

    4.2 Product generic type

    4.3 Film thickness per coating (m) 4.4 N of coatings

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    4.5 Application method

    4.6 Color

    5.0 Finish (3 coating)

    5.1 Paint identification

    5.2 Product generic type

    5.3 Film thickness per coating (m) 5.4 N of coatings

    5.5 Application method

    5.6 Color 6.0 Remarks

    (to be filled in in case of record)

    Signature

    Signed:

    (Name and position)

    Attachments: (if the proposed paints are not among those mentioned in subsection 8.2, the respective technical data sheet, issued by the manufacturer, shall be attached)

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    Date: Page 1 of 1

    FORMAT N 2 REPAIRS

    (To be filled in by the supplier) ( pages)

    SUPPLIER

    1. Date

    2. Equipment

    3. Component

    4. Paint procedure number (format N 1)

    5. Substrate condition

    6. % damage and repaired surface

    7. Surface preparation method

    8. Paint method

    9. Priming (1 coating)

    9.1 Name and type

    9.2 Coating thickness (m) 10. Intermediate (2 coating)

    10.1 Name and type

    10.2 Coating thickness (m) 11. finish (3 coating)

    11.1 Name and type

    11.2 Coating thickness (m) 12. Remarks

    Signature

    Signed:

    (Name and position)

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    Page 1 of 2 FORMAT N 3 PAINTING ACCEPTANCE (consisting in pages) SUPPLIER

    1. Workplace

    2. Equipment

    3. Component

    4. Contract N

    5. Paint procedure N (format N 1)

    6. Description of the work

    6.1 Substrate (type of material)

    6.2 Surface preparation

    6.3 Paint: 1 COATING

    PRIMING 2 COATING

    INTERMEDIATE 3 COATING

    FINISH Name Dry film thickness (m)

    7. Coating final characteristics - Color

    - Total thickness (m) - Paint aspect

    8. Qualification

    ACCEPTABLE NOT ACCEPTABLE 9. Remarks: 10. Repair procedure N (format N 2)

    ACCEPTABLE NOT ACCEPTABLE

    Signature anddate:

    Signed;

    (Name and position)