MasterSeal Roof Systems - Ravago · from Master Builders Solutions 5 All the systems are based on...

MasterSeal Roof Systemsfrom Master Builders Solutions 1

Application manual

March 2017

MasterSeal Roof Systems


MasterSeal Roofing SystemsApplication manual

Indice

1. Short introduction to MasterSeal Roofing systems

2. The substrate2.1 Identifying the different types of existing joints2.2 Placing and treating the joints2.3 Treating the floor and wall joints2.4 Preparing the surface2.5 Degree of moisture

3. Primers3.1 Application procedure3.2 Quartz sand broadcast

4. Temperature for the application

5. Membranes 5.1. Polyurethane sprayed membranes5.2. Polyurethane hand applied membranes5.2.1. Two components polyurethane hand applied membranes5.2.2. Single component polyurethane hand applied membrane

6. Top coat

7. Recoating time: general overview

8. Controls8.1 Visual inspection8.2 Thinckness estimation8.3 Surface hardness estimation8.4 Evaluation of the adhesion values

9 Repair technique

10. Reccomendations for safety and storage of materials

5

7

11

15

17

21

23

25

26

26

MasterSeal Roof Systemsfrom Master Builders Solutions4


All the systems are based on proper combination of primer, membrane and top coat. The choise of the

single components in the specific system is a fuction of:

�� substrate;

�� final performance to obtain.

To see more details, please have a look to the technical data sheet of the product and system.

1. Short introduction to MasterSeal Roofing systems

Sprayed applied Hand applied

MasterSeal Roof 2103





Function Product

Primer

MasterSeal P 385 n n n n

MasterTop P 604 n n n n

MasterSeal P 681 n n n n

MasterSeal P 682 n

MasterSeal P 683 n

MasterSeal P 684 n n n n n

MasterTop P 686W n n n n



Membrane

MasterSeal M 803 n

MasterSeal M 800 n

MasterSeal M 811 n

MasterSeal M 860 n

MasterSeal M 861 n

MasterSeal M 640 n

Top coatsMasterSeal TC 259 n n n n n

MasterTop TC 417 W n n n n

Filler MasterTop F 5 n n n n

Table of the MasterSeal Roof systems


Sprayed applied Hand applied






Function Product

Primer

MasterSeal P 385 1,5 1,5 1,5 1,5

MasterTop P 604 0,5 0,5 0,5 0,5

MasterSeal P 681 0,8 0,8 0,8 0,8

MasterSeal P 682 0,05

MasterSeal P 683 0,4

MasterSeal P 684 0,05 0,05 0,05 0,05 0,05

MasterTop P 686W 0,1-0,2 0,1-0,2 0,1-0,2 0,1-0,2

MasterSeal P 698 0,1 0,1 0,1 0,1 0,1

MasterSeal P 691 0,1 0,1 0,1 0,1 0,1

Membranes

MasterSeal M 803 2-2,25






TopcoatsMasterSeal TC 259 0,4 0,4 0,4 0,4 0,4

MasterTop TC 417 W 0,2 0,2 0,2 0,2

Filler MasterTop F 5 1 1 1 1

Table of consumption kg/m2


2. The substrate

It is extremely important to identify all the types of substrate that could require waterproofing. In the

case of roofing, there are many types while it is relatively simpler in respect of car parks or hydraulic

works, where the main surface area is undoubtedly made with reinforced concrete or cementitious

mixes. A visual on-the-spot inspection may simply be carried out for existing works, whereas the

substrate is identified from the project drawings in the case of new structures.

The main surface type for the specific sector is undoubtedly reinforced concrete and bituminous

membranes.

Other areas may also have ceramic tiles, plastics, fibre cement, metal surfaces in general.

For substrates other than those mentioned above, it is necessary to contact our Technical Advisory

Service for an assessment of the specific case. Asphalt generally speaking is not a suitable substrate

for these systems. If asphalt is present, it must be completely removed and then the substrate checked

to see if it is compatible with the MasterSeal ystems.

Complete and correct identification of the nature of the substrate is essential for proper waterproofing,

since it is the basic parameter for choosing the specific type of primer to be used.

2.1 Identifying the different types of existing joints

For reinforced concrete surfaces the designer/engineer must always recommend, in the case of new

works, or identify, in the case of existing structures, the different types of joints by classifying them

according to their function.

2.2 Placing and treating the joints

For the placing of joints, it is always advisable to refer to professional architectural/engineering guides.

In this critical stage the specialised joints engineer must always carefully assess the maximum

movement envisaged for the expansion joint.

This value is the discriminant factor in choosing the technique for treating this constructional detail.

2.3 Treating the floor and wall join

Immediately prior to application of the membrane, the floor and wall joint areas must be treated with

specific textile tape or butyl rubber tape MasterSeal 944 which will then be covered entirely by the

membrane. This procedure is necessary to reduce the specific stresses in the corners and therefore to

keep the waterproofing membrane intact.

2.4 Preparing the surface

�� Cementitious substrates: prior to application of the waterproofing system, it is indispensable to check

concrete surfaces for cracks, damage or contamination from oils, grease or other substances. In such

cases remove any loose or contaminated concrete and then make good the surface using products

from the MasterEmaco product range. To choose the best repair material for the specific case, it is

always advisable to contact a BASF CC technician or engineer. In the case of undamaged or repaired

concrete surfaces, prepare the substrate by shot-blasting, grinding or sanding. A precise and detailed

assessment is always subject to a visit on site by a BASF CC technician or engineer. Always remove the

dust from surfaces using a suction cleaner.

�� Ceramic tiles surfaces: in this case the recommended technique is grinding or shot-blasting. A precise

and detailed assessment is always subject to a visit on site by a BASF CC technician or engineer. It

is crucial to evaluate in advance the state of damage to the ceramic covering (broken or missing tiles,


saturated substrate, cracked grouting) as well as the degree to which the underlying substrate is soaked.

These problems must be identified and resolved prior to application of the primer. Always remove the

dust from surfaces using a suction cleaner.

�� Bituminous membrane: in the case of surfaces in bituminous membrane, particular care must be taken

over damaged areas (the surface of the bituminous membrane must have no loose parts, grease, oil,

dust or any element that could prevent adhesion of the material). Any bubbles or separation must be

eliminated and repaired. The surface is then prepared by water jetting.

�� Metal surfaces: metal surfaces (except stainless steel) must be sand-blasted to SA 2 ½. Always remove

the dust from surfaces using a suction cleaner. Metal surfaces should be clad with the waterproofing

materials before a layer of oxide forms.

�� Plastic surfaces: cleaning must be carried out by water jetting or using a solvent, detergent or

degreasing agent. The evaluation depends on the specific case and therefore on an on-site inspection.

If in doubt or in uncertain situations, it is always advisable to contact our Technical Advisory Service.

Always remove the dust from surfaces using a suction cleaner

2.5 Degree of moisture

After having prepared the substrate surface and before applying the primer, it is necessary to assess

the hygrometric conditions of the substrate. More specifically, should the substrate be in bituminous

membrane, plastic, ceramic or steel, the surfaces must be visually dry.

For the roofing and car park systems in particular, the situations of use of the rooms under the roofing

should also be carefully assessed. In other words the presence of kitchens, public premises, technical

installations, etc., which are temperature-controlled during the summer, should be assessed. In fact

these treacherous factors, which are often underestimated, can generate surface condensation on the

interface and therefore prevent the system from fully adhering to the substrate. In such cases, knowing

the boundary conditions, a specific barrier primer will be necessary. For a specific assessment, it is

always advisable for our technicians/engineers to come for an on-the-spot inspection.

Only if these conditions are satisfied should the primer and then also the MasterSeal M membrane

be applied. For cementitious type substrates it is always necessary to check the degree of surface

moisture. This can be done using, for example, an analog hygrometer or through the empirical method of

the polyethylene sheet. The surface moisture value must in any case be less than 4%.


3. Primers

Choosing the primer to be used for the specific application starts with knowing the type of substrate and

any boundary conditions that always need to be assessed very carefully.

Once all the specific conditions are known, the specific primer can be selected. A few tables are given

below to act as a practical guide.

Type of primerMasterTop MasterSeal

P 604 P 686 W P 385 P 681 P 682 P 683 684 P 691 P 698

Epoxy cementitious (3k)

n

Epoxy (2k) n n

Water based epoxy 82K)

n

Polyurethane (1k) n n n n

Silanes n

SubstrateMasterTop MasterSeal

P 604 P 686 W P 385 P 681 P 682 P 683 684 P 691 P 698

Concrete in case of no barrier against rising damp, damp surfaces, potential risk of condensation in the underlying rooms, negative hydrostatic pressure

n

Ceramic surfaces n n

Concrete n n

Steel n

Non-ferrous metals and stainless steel

n

Bituminous membranes n n

PVC, plastic surfaces and when exceeded the recoating time

n

MasterSeal M membranes when recoating time has been overtaken

n

Families of primer and specific product names

Guide to choosing the primer


Theoretical consumption,

kg/m2Mixing ratio

Pot life at 20°C (minutes)

Recoating time min-max

MasterTop P 604 0.3 – 0.5 100 A / 27 B 12° C : 6010°C: 16 – 48 hours23°C: 6 – 48 hours 30°C: 3 – 24 hours

MasterTop P 686 W 0.1 – 0.2 72 A / 28 B 23° C: 3010°C: 24 – 48 hours23°C: 7 – 36 hours 30°C: 3 – 24 hours

MasterSeal P 385 0.5 -1.521% A, 21% B,

58% C30° C: 15 48 hours – 7 days

MasterSeal P 681 0.6 – 1 3 / 1 12°C : 6010°C: 10 hours – 7 days20°C: 5 hours – 7 days

30°C: 2.5 hours – 7 days

MasterSeal P 682 0.05 - 23°C: 6010°C: 10,5 hours – 5 hours

20°C: 15 min – 4 hours30°C: 15 min – 4 hours

MasterSeal P 683 0.3 - 0,5 - -10°C: 3 hours – 4 hours20°C: 1 ora – 48 hours30°C: 1 ora – 24 hours

MasterSeal P 684 0.03 – 0.06 - -10°C: 2 – 4 hours

20°C: 30 min – 2 hours30°C: 15 min – 1 hours

MasterSeal P 691 0.05 – 0.10 - -10°C: 2 – 36 hours 20°C: 1 – 24 hours

MasterSeal P 698 0.05 – 0.15 - -10°C: 2 – 6 hours 20°C: 1 – 5 hours 30°C: 1 – 4 hours

When maximum recoating times have been exceeded, the adhesion promoter MasterSeal P 691 must

be used. Vacuum/wash the surface should it have been open to traffic or put into use even temporarily.

3.1 Application procedu

�� MasterTop P 604: mix both the base and the hardener thoroughly before using. Then blend one pack of

base with one of hardener. In the case of drums, mix base and hardener in the recommended catalyst

ratios. Mix using a low-speed drill (300 rpm) with whisk attachment for approx. 3 minutes until a smooth

uniform mix is obtained. Apply the mix by squeegee or smooth trowel and then pass over the surface

with a short-pile roller to distribute the primer evenly. The tools used for mixing and application of the

material may be cleaned with epoxy thinner E100.

�� MasterTop P 686 W: mix both the base and the hardener thoroughly before using. Then blend one

pack of base with one of hardener. In the case of drums, mix base and hardener in the recommended

catalyst ratios. Mix using a low-speed drill (300 rpm) with whisk attachment for approx. 3 minutes until

a smooth uniform mix is obtained. Apply the mix by squeegee or smooth trowel and then pass over the

surface with a short-pile roller to distribute the primer evenly. The primer can be diluted with water if

the surface is in the bituminous sheets, up to a maximum of 25%. After mixing, apply the primer on the

Primers and specific properties


media distributing it with a rubber squeegee or trowel and finishing it with a short hair roller. Apply the

waterproofing membrane Masterseal M800 / M811 / M803/ M860 / M861 when the primer is still sticky

and still after 12 hours (at 20 ° C).

�� MasterSeal P 385: pour component B (hardener) into component A (base) and mix thoroughly. Then add

component C (aggregate) mixing all the time with a mechanical mixer. Continue mixing until a smooth,

lump-free mix is obtained. MasterSeal P385 may be applied with a trowel, as for shallow filling work,

or with a brush, roller or spray diluted with 10-20% water. Always apply two coats with an interval of

16-24 hours between coats. MasterSeal P385 is abrasive and it is therefore advisable to use airless

membrane equipment. Thoroughly clean the working tools with water and detergent immediately after

use. Avoid excessive bends in the hose in order to decrease friction inside it and always position the

spray pump either at operator height or preferably higher. During application of the product make sure

it is constantly agitated. As is usual for waterborne products, do not work in direct sunlight, with wind,

fog or strong humidity or when there is a danger of rainfall or freezing. The film formed by this product

requires 7 days at 20°C and 65% rh to terminate the hydration process and become suitable for use in

the envisaged conditions. It may, however, be coated with epoxy or polyurethane coatings already after

(but not before) 48 hours in conditions of good ventilation (check case by case that the surface moisture

is no more than 4%).

�� MasterSeal P 681: the product components come pre-packaged in the exact mixing ratio. Before

mixing, bring both components to a temperature of approx. 15 to 25°C. Component A contains

pigments, which could settle on the bottom, so as a general rule shake the container well before use.

Pour the entire contents of the component B into the component A container. Do not mix by hand.

Mix with a low speed mixer (approx. 300 rpm) with whisk attachment for approx. 3 minutes until a

smooth uniform mix is obtained. During mixing, scrape the sides and the bottom of the container well

to ensure complete mixing. Keep the whisk submerged in the coating to avoid introducing air bubbles.

After thorough mixing, pour the contents into a fresh, clean container and mix for a further minute to

obtain a uniform consistency. Two coats of MasterSeal P 681 must be applied using a brush or roller.

The second coat should always have MasterTop F 5 added.

�� MasterSeal P 683, 684 / 690 / 691 / 698: bring the material to a temperature of approx. 15 to 25°C. The

products contain pigments, which could settle on the bottom, so as a general rule shake the container

well before use. The best application method is by brush or cloth (by roller and spray for MasterTop

P 698). Spread it all over the surface to form a thin layer, taking care not to apply too much. It is

important when using MasterSeal P 698 to apply it around the details of the joints, between sheets

Airless spray equipment

Nozzle equivalent diameter 0.026 - 0.030 in

Spraying angle

Nozzle pressure 200 - 250 bar

Minimum flow rate 10 litres/minute

Hose diameter 3/8 in

Maximum hose length 10 m

Filter 60 Mesh (equal to 250 micron openings and to 590 threads/cm2


and to angled areas.

�� MasterSeal P 682: Shake the package to homogenize the material, then the surface properly

degreased dry and apply the primer with a dry cloth to avoid leaving hairs on the surface. The

formation of a patina to oily texture on the surface of the tiles is indicative of an excess of primer.

Remove the excess with a dry cloth.

To know more about the application methods and relative technical expedients, always refer to the

product data sheets.

3.2 Quartz sand broadcast

To improve adhesion of following layers in the system being used, once the primer has been applied it

is necessary to add, wet on wet, spheroidal quartz having a particle size of 0.3 - 0.8 mm MasterTop F 5,

in the proportion of 0.8-1 kg/m2. The purpose of this procedure is to give the waterproofing system that

will be applied afterwards physical and not just chemical adhesion.

MasterTop F 5 sand quartz broadcast is recommended for MasterTop P604, MasterTop P 686W,

MasterSeal P 681.


4. Temperature for the application

The temperature of the substrate must be above 5°C for epoxy products and above 8°C for

polyurethanes and in any case at least 3°C above dew point. MasterSeal systems are usually applied

outdoors and sometimes in relatively low temperatures. Prior to applying each layer, it is essential

to make sure that there is no surface condensation or moisture on the substrate. The surfaces must

be dried with compressed air before application, which should be limited to the central hours of the

day. If maximum times for recoating are exceeded, then MasterSeal P 691 must again be used as

adhesion promoter. After application the primer must be protected against direct contact with water

for approximately 24 hours (at 20°C), otherwise efflorescence or a sticky surface could form and would

require remedying.


5. Membranes

5.1 Polyurethane sprayed applied membranes

MasterSeal M 800, M 803, M 811 are a high performance solvent-free polyurethane system that hardens

instantly and are applied by high-pressure two-component sprayer. MasterSeal M 800, M 803, M 811

offers very high elastic properties and crack bridging ability, it is extremely reactive (it polymerises in just a

few seconds), it fully adheres to the substrate and has a very high resistance to impact.

The market offers various possibilities in respect of the spray pump. For advice, contact a BASF CC

technician. The spray machine keeps the two components separate and heated to a temperature of 50°C -

60°C; it allows mixing to occur only at the nozzle given the extremely fast polymerisation of the material (10

seconds). The team normally consists of two specialised workers and one skilled worker. The team may,

however, vary considerably in composition depending on the complexity of the constructional details and

the surface to be treated.

Before application by spray, both the MasterSeal M 800, M 803, M 811 components must be pre-heated

by means of heating bands to a temperature of approx. 25-30°C. Component A must be thoroughly mixed

before use. It is advisable to use a mechanical air jet mixer applied directly onto the drum lid.

MasterSeal M 800 MasterSeal M 803 MasterSeal M 811

Mixing ratioWeight A:B 100 : 73Volume A:B 100 : 70

Weight A:B 100 : 70Volume A:B 100 : 73

Weight A:B 100 : 106Volume A:B 100 / 100

Density of mixed product 1.08 kg/litre 1.10 kg/litre 1.07 kg/litre

ViscosityA: 2400 mPa · sB: 2500 mPa · s

A: 3000 mPa · sB: 1200 mPa · s

A: 1700 mPa · sB: 1800 mPa · s

Application pressure 130 - 180 bar 130 - 180 bar 130 - 180 bar

Application temperatureComp A 70 - 75°CComp B 70 - 75°C

Comp A 70 - 75°CComp B 70 - 75°C

Comp A 70 - 75°CComp B 70 - 75°C

Gel time at 20°C 15 s 20 s 14 s

Complete hardening/final setat 23°C and 50% rh

2 days 2 days 2 days

Data for the application of MasterSeal sprayed membranes

If application is stopped and restarted within the recoating times, overlap the membrane directly by at

least 20 cm, otherwise overlap only after having applied the adhesion promoter MasterSeal P 691, which is

specific for “spraying restarts”. The substrate temperature must be more than 5 °C and in any case at least

3°C above dew point.


MasterSeal M 800, M 803, M 811 MasterSeal P 691

MasterSeal M 800, M 803, M 81110° C: / - 8 hours20° C: / - 4 hours30° C: / - 2 hours

10° C: 2 - 36 hours20° C: 1 - 24 hours

Recoating time (min-max)

5.2. Polyurethane membranes hand applies

They are divided in two main families:

�� two-component polyurethane hand applied membranes;

�� single component polyurethane hand applied membranes.

5.2.1 Two-component polyurethane hand applied membranes

MasterSeal M 860 is a high performance, solvent-free continuous type polyurethane membrane with a

self-levelling consistency (whereas the MasterSeal M 861 version has a thixotropic consistency), applied by

casting and subsequent spreading with a notched-edge spreader and bubble-buster roller (the thixotropic

version specific for vertical sections should instead by applied by smooth spreader).

First mix both components of MasterSeal M 860/861 thoroughly using a low-speed electric mixer (300

rpm). Then pour the entire contents of the component A into the component B container and mix for

at least three minutes until a uniform smooth mix is obtained. For best results in terms of workability, it

is advisable to check that the temperature of the two components is between +15°C and +25°C. When

MasterSeal M 860 has been thoroughly mixed it is easily applied by pouring it over the surface and

spreading it evenly using a rubber squeegee or notched-edge spreader. MasterSeal M 861 is applied with

a smooth trowel (roller application is not possible). The substrate temperature must be more than 5 °C and

in any case at least 3°C above dew point.

MasterSeal M 860 MasterSeal M 861

Mixing ratio by weight 100 : 180 1 : 10

Density of the mix 1.35 kg/litre 1.05 kg/litre

Viscosity at 20°C 5200 mPas Pasta

Pot life10° C: 35 min20° C: 25 min30° C: 15 min

10° C: 35 min20° C: 25 min30° C: 15 min

Min/max recoating times10° C: 8 – 48 hours20° C 5 – 24 hours

10° C: 8 – 48 hours20° C 5 – 24 hours

Completely polymerised 4 days 5 days

Data for the application of MasterSeal hand applied 2K Membranes


Technical data

Density 1,3 kg/litre

Tack free time 2 hours

Min/max recoating times 20°C: 12 – 36 hours

Complete hardening 7 days (+ 20° C)

5.2.2 Single component polyurethane hand applied membranes.

Fall into this category MasterSeal M 640.

MasterSeal M 640 applies to medium hair roller in at least two hands on time recoating. Protect the wet

film from the direct influence of water in the first 24 hours.

In correspondence of contraction joints or in the presence of slits, before proceeding to the

implementation of the cycle waterproofing, it is necessary to provide for the use of the flap butyl

MasterSeal 944. In the junctions bottom wall you will have to provide for the laying of the strip butyl

MasterSeal which separation layer.


6. Topcoats

The specific top coats must be used in combination with primers and membrane as described in the:

�� MasterSeal TC 259 is a film-forming one-component water-hardening polyurethane finish that is UV

resistant. It is applied in industrial MasterSeal 2103, 2110, 2110 systems to give them resistance to UV

radiation and to stagnant water as well as the required colour.

�� MasterTop TC 417W is a film-forming two-components water based polyurethane UV resistant top coat. It

is applied in roofing where the use of solvents is not allowed. For detailed information please always refer

to its technical data sheet.

MasterSeal TC 259 MasterTop TC 417 W

Mix ratio - 6 A :1 B

Solids 58 % 50 %

Density 1.2 kg/l 1.2 kg/l

Viscosity at 20°C 1000 mPa · s ---

Ready to be walked at 23°C 24 hours 18 hours

Complete hardening at 23°C 50% Ur

5 days 7 days

Temperature +5 / +30 °C +10 / +30 °C

Umidity 40- 90 % 30 - 80 %

Recoating time10°C: 8 -72 hours20°C: 5 -48 hours30°C: 4 -48 hours

20°C: 16 -24 hours

Data for the application


7. Recoating time: general view

MasterSeal M800/M803/811

MasterSeal P691

MasterSeal M860/M861

MasterSeal M 640

MasterSeal TC 259

MasterTop TC 417 W

MasterSeal M800/M803/811

10°C: / - 820°C: / - 430°C: / - 2

10°C: 2 - 36 20°C: 1 - 24

10°C: 2 - 36 20°C: 1 - 24

- -

MasterSeal M860/M861

-10°C: 2 - 36 20°C: 1 - 24

10°C: 2 - 36 20°C: 1 - 24

- -

MasterSeal M 640

-10°C: 2 - 36 20°C: 1 - 24

10°C: 2 - 36 20°C: 1 - 24

20°C: 12- 36

MasterSeal TC 259

10°C: 8 - 2420°C: 4 - 2030°C: 2 - 18

20°C: 12- 3610°C: 8 -7220°C: 5 -4830°C: 4 -48

MasterTop TC 417 W

10°C: 8 - 2420°C: 4 - 2030°C: 2 - 18

10°C: 2 - 36 20°C: 1 - 24

10°C: 2 - 36 20°C: 1 - 24

- - 20°C: 16 - 24

Table of the recoating time (min-max) for Masterseal products (hours)

If maximum recoating times have been exceeded or surface condensation has formed, the adhesion

promoter MasterSeal P 691 must always be used.


8. Controls

The information in this section could be of help both to the coating contractor and job site management.

8.1 Visual inspection

A first general inspection is made immediately after spraying. If there are areas in which the substrate

texture (surface roughness, aggregates dotted over the surface, etc.) is especially visible, it is necessary

to check immediately if the effective consumption rate is compatible with the envisaged thickness. If the

overall consumption rate is less than expected, another layer must be applied wet on wet over the previous

coat immediately.

8.2 Thinckness estimation

Apart from a thickness estimation based on the actual consumption rate (which is the guideline for the

applicator) there are another two techniques for proceeding with the estimation:

�� the first is non-destructive: for well-defined areas it is sufficient to lay Teflon strips or panels on the

ground which will be covered with membrane during spraying. The precise thickness in real terms can

be measured on these samples produced in real application conditions using a simple calliper or gauge;

�� the second is destructive: an area for the control is outlined from which the membrane is cut and then

removed so that its thickness can be measured directly. That area must obviously be made good to

guarantee the continuity of the waterproofing.

8.3 Surface hardness estimation

To assess the correct polymerisation reaction of the membrane, a “SHORE DUROMETER” which complies

with the main standards in force (e.g. DIN 53505, ISO 7619, ASTM D 2240) is used.

Measurement of the SHORE hardness and any deviation from the expected value will highlight any

abnormal situations, so that any maintenance or repair work can be planned.

The advantage of this instrument lies in its ease of use, the frequency of possible measurements and the

utterly marginal cost compared to the usefulness of the collected data.

8.4 Evaluation of the adhesion values

A destructive in-situ control may be carried out using a portable Adhesion Tester of the type

recommended in ASTM D4541 following the procedure laid down in the same standard. This test allows

information to be obtained regarding the modes of breaking (due to tension failure of the substrate,

interface separation, tension failure of the membrane or intermediate situations). A visual inspection

should identify the areas in particular in critical surfaces where it seems highly likely that the application is

defective


9. Repair technique

10. Reccomendations for safety and storage of materials

If there are areas where defects are found related to Shore hardness, cracks, separation, blistering,

infiltration, etc., it is necessary to proceed with:

�� fully identifying the areas to be repaired; the area needing repair will be the damaged area plus an

adequate adjacent area (approx.. 50 cm beyond the damaged part). The area will therefore be marked

out through an incision which must go through the entire thickness of the membrane and a part of the

concrete;

�� removing the membrane;

�� priming: the primer must be applied on the substrate properly prepared and the area of membrane that

will be overlapped, which is approx. 50 cm. The specific primer for the type of surface must be used;

�� applying the waterproofing membrane: the membrane will be laid over the whole area treated with the

specific primers.

For any matters concerned with safety and storage of the materials, always refer to the safety data sheet of

each individual product.

Master Builders Solutions fromBASF for the Construction Industry

BASF Construction Chemicals Italia SpaVia Vicinale delle Corti, 2131100 Treviso • ItaliaT +39 0422 304 251 - F +39 0422 429 [email protected] www.master-builders-solutions.basf.it

Le informazioni qui contenute circa le modalità d’uso o di impiego dei nostri prodotti, corrispondono allo stato attuale delle nostre conoscenze scientifiche e pratiche e non comportano l’assunzione di alcuna nostra garanzia e/o responsabilità sul risultato finale delle lavorazioni con impiego dei nostri prodotti. Non dispensano, quindi, il cliente dall’onere e responsabilità esclusivi di verificare l’idoneità dei nostri prodotti per l’uso e gli scopi che si prefigge. La qualità contrattuale del prodotto al momento del trasferimento si basa esclusivamente sulle informazioni presenti nella scheda tecnica. Tutte le descrizioni, i disegni, le fotografie, i dati, le misure, i pesi, ecc. indicati in questa pubblicazione possono essere modificati senza preavviso. È responsabilità di chi riceve i nostri prodotti assicurarsi che siano rispettati eventuali diritti proprietari come anche le leggi e le legislazioni vigenti (02/2014).

® = marchio registrato del Gruppo BASF in molti paesi. EEBE 1409it

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MasterLifeSoluzioni per calcestruzzi durevoli

MasterMatrixSoluzioni per il controllo dellareologia in calcestruzzi reodinamici

MasterPelSoluzioni per calcestruzziidrofobizzati

MasterPolyheedSoluzioni per calcestruzzimediamente performanti

MasterPozzolithSoluzioni per la riduzionedell’acqua nei calcestruzzi

MasterProtectSoluzioni per la protezionedel calcestruzzo

MasterRheobuildSoluzioni per calcestruzzisuperfluidi

MasterRocSoluzioni per le costruzioniin sotterraneo

MasterSealSoluzioni per l’impermeabilizzazionee la sigillatura

MasterSetSoluzioni per il controllodell’idratazione

MasterSureSoluzioni per il controllo dellalavorabilità

MasterTopSoluzioni per pavimentazioniindustriali

Master X-SeedSoluzioni per il calcestruzzoprefabbricato con indurimentoaccelerato

UcreteSoluzioni per pavimentazioniad elevata durabilità

MasterSeal Roof Systems - Ravago · from Master Builders Solutions 5 All the systems are based on...

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