Advanced Materials

Structural AdhesivesFor Sandwich Panel Bonding

High-Performance Thermoset Chemistries to Meet Your Most Demanding Applications

2

Huntsman Advanced Materials provides engineered solutions for our customers using a wide range of innovative, high-performance thermoset chemistries and formulations. For over 70 years, customers have chosen Araldite,® Euremelt,® and Arathane® brand products for their high-performance adhesive technology.

Every day our scientists work with designers and engineers to bring lightweight, high-strength, durable products to market and help solve increasingly complex design issues. Our growing portfolio of specialty resin systems and adhesives serve the aerospace, automotive, coatings, electronics, energy and industrial composite markets.

High-performance epoxy and polyurethane adhesives from Huntsman are the materials of choice for building durable, lightweight composite panels used in aircraft interior floors, sidewalls and ceilings. Similarly, our structural adhesives are well-suited for manufacturing high-strength sandwich panels used to manufacture recreational vehicles, trucks and trailers as well as multi-layer architectural panels, cold storage panels and garage doors.

Sandwich Panel BondingBonding is one of the most versatile technologies available to the manufacturing industry because today’s broad spectrum of adhesives provide for the secure assembly of many substrates and substrate combinations. In addition, epoxy, polyurethane and methyl methacrylates (MMA) adhesives are designed to be used with many different processing technologies from roll coating to bead/spray/spatter application and several manual methods.

About Huntsman Advanced Materials

3

Applications for Bonded Sandwich PanelsRecreational VehiclesStriving to maximize strength and durability and to minimize weight for greater fuel economy, recreational vehicles are built with a variety of materials including structural plastics, steel and aluminum, fiberglass, honeycomb composites, and wood/luan/laminates.

Next-generation adhesive technologies provide reliable joining of these dissimilar substrates and offer significantly improved performance compared to traditional welding or riveting. Bonded assemblies prevent the distortion that can occur with mechanical fastening and offer excellent stress distribution and fatigue resistance. Resulting bonded panels are cosmetically attractive, without substrate “print through.” The walls, sidewalls and other adhesively joined components are impact resistant, feature reduced noise and vibration, and can withstand exposure to temperature and weather extremes as well as ultraviolet light.

RV Production Applications

Application Panel Substrates Araldite® Adhesives Benefits

Walls, Floors, Roofs FRP/luan/Al/luan – MCU – HM PUR – MCU (LES)

Higher strengthBetter spread outHigher green strength

FRP/luan replacement/Al/ luan replacement

– MCU – HM PUR – MCU (LES)

Higher strengthBetter spread outHigher green strength

EGS/EPS EVA 15 Better flow

OSB/Al/luan – MCU – HM PUR – MCU (LES)

Higher strengthBetter penetrationMany speed options

Structural Framing Structural plastics MMA Prime not reseller

Steel/honeycomb structures Epoxy Higher strengthMore speed options

Non-metal rigid 2K Polyurethane For gas impervious substrate

Cap Affixing Fiberglass/FRP MMA Prime not reseller

Wall Board Vinyl/luan HM PUR 3 Highest green strength

Cabinets Wood/wood laminates Euremelt® Polyamides Full line of options

Sidewalls EPS (affixing) EVA 15 Better flow out

4

Applications for Bonded Sandwich Panels

Trucks and TrailersSandwich constructions comprised of materials such as metal, composite and wood are upgrading truck and trailer panel performance, while reducing weight.

Bonded panels are assembled faster, with less noise, than riveted parts. The sag-resistant properties of polyurethane and epoxy adhesives allow for application on vertical as well as horizontal surfaces. A range of open times accommodate use on large fabricating projects. Fast green strength provides for quick part throughput. Once cured, the bonded panels are sound- and vibration-dampening and produce smooth surfaces without the snag possibilities of riveted parts. Adhesively joined panels can also allow manufacturers to use thinner aluminum skins than riveted assemblies. Bonded construction increases the life span of trailer panels; while riveted parts corrode and crack at the joints, requiring replacement.

Trucks and Trailers Applications

Application Panel Substrates Araldite® Adhesives Benefits

Roof to Cab SMC/painted metal Araldite® PU-LES 60 A/B For gas impervious substrates Bonds to low-surface energy substrates

Trailer Panels and Sidewalls Steel/honeycomb Epoxy Higher strength – toughened

Trailer Sidewalls FRP/aluminum Epoxy Toughened product

Swing Doors SS or Al/plywood/SS or AL Epoxy Toughened – more flexibility

Trailer Skirting and Tail Various Araldite® PU-LES 60 A/B Adhesion to low surface energy plastics

5

High-Durability Doors and PartsSandwich construction doors and panels improve strength, insulate interiors from temperature fluctuations and prevent wind damage. With the ability to securely join substrates designed for specific performance abilities, manufacturers are producing higher quality products than ever before.

Securing dissimilar substrates is a primary strength of polyurethane adhesives. The products maintain their bond strength even when the expansion coefficients of joined materials change when exposed to temperature extremes (hot and cold).

Epoxy adhesives are ideal for building impact-resistant doors and other products that require extra durability to withstand demanding conditions as in industrial plants.

High-Durability Doors and Parts Applications

Application Panel Substrates Araldite® Adhesives Benefits

Garage & Entrance Door, Cold Storage Doors

GLV Steel/EPS/GLV Steel – MCU – HM PUR – Epoxy

Better green strengthHigher strength

Architectural / Exterior Doors Steel/ EPS/ Steel – MCU – HM PUR – Epoxy

Better green strengthHigher strength

Entrance Doors Steel/Wood/Steel – MCU PUR – HM PUR – Epoxy

Better green strengthHigher strength

Impact Doors ABS/Particle Board/ABS MCU (LES) Bonds to LES plastics

Animal Confinement Building Panels

FRP/Luan/EPS/Luan – MCU PUR – HM PUR

Excellent green strengthHigh speed lamination

6

Araldite® MCU – Moisture-Cure Polyurethane AdhesivesSolvent free, single-component liquid polyurethanes include slow, medium-slow and medium-fast curing systems. MCU adhesives are formulated for producing panels comprised of wood and Luan, foams, primed metals and FRP. Please note, one substrate must be gas permeable.

Polyurethane adhesives in the Araldite® moisture-cure product family are odorless and easy to dispense via roll coating or bead/spray/spatter application. They feature a range of open times from three minutes to more than one hour, facilitating use on panels of all sizes. Cured lap shear strength on Luan/FRP and Luan/AL is greater than 600 psi.

Huntsman also offers a line of products to bond engineered plastics, such as polyethylene, polycarbonate and polypropylene. In addition, Huntsman’s MCU (LES) moisture-cure adhesives are specifically designed for use on Low Energy Substrates.

Araldite® HM PUR – Hot-Melt Polyurethane AdhesivesMoisture-curing hot-melt adhesives are designed to be applied in molten form and cure in the presence of moisture to form a tough durable bond. The polyurethanes in Huntsman’s hot-melt line adhere to a wide variety of substrates including wood and wood products, foams, primed metals, FRP and plastics including PVC and ABS. (At least one substrate must be gas permeable to achieve an optimal bond.)

Ideal for roll coating of sandwich panel layers, Araldite® hot-melt polyurethanes have open times of three to seven minutes. The adhesives exhibit excellent elongation and produce laminates with good interlaminar lap shear and peel strengths.

Araldite® 2 K PUR – Two-Component Polyurethane AdhesiveThese adhesives are ideal for use when at least one substrate is not gas permeable, such as plastics, FRP and primed metals. Araldite® polyurethane adhesives produce durable joints with good flexibility and require minimal surface preparation. The products have 1:1 pbv mix ratios and attain handling strength in four hours at room temperature. Laminated panels exhibit high shear strength and high elongation and flexibility when subjected to heat and environmental exposure to gas, oil and water.

Araldite® MMA – Methyl Methacrylate AdhesivesRapid-curing methacrylate adhesives are toughened systems that are well suited for building sandwich panels with metal, FRP composite and thermoplastic (ABS and PVC) substrates. The products have a convenient 1:1 resin:hardener pbv mix ratio and have open times of two to 12 minutes.

Once cured, MMA adhesives have high lap shear and good roller peel strengths with excellent oil and gasoline resistance. Additionally, these adhesives exhibit high performance in elevated temperature environments (service temperature of up to 212˚F/100˚C).

Huntsman Adhesives for Bonding Sandwich Panels

7

Araldite® Epoxy AdhesivesEpoxy structural adhesives from Huntsman are supplied in a wide variety of different formulations. For sandwich panels, two new next-generation systems are now available. They have convenient 1:1 or 2:1 pbv resin:hardener mix ratios and cure at room temperature. One adhesive has high shear strength and peel strength at temperatures from -67˚F (-55˚C) to 200˚F (93˚C). A second epoxy system exhibits very high heat resistance (400˚F [204˚C]) as well as high compressive strengths on composite substrates.

Euremelt® Polyamide AdhesivesTo minimize panel assembly time, hot-melt polyamide adhesives develop rapid green strength while offering open times long enough for laminating panel surfaces. The adhesives produce long-lasting joints on wood and wood laminates used in building cabinetry. Cured panels can withstand exposure to temperature extremes as well as exposure to greases and oils.

Araldite® EVA AdhesivesEconomical, easy-to-use EVA hot-melt adhesives are ideal for producing tough, flexible bonds between laminate layers used in sandwich panels. The materials are particularly well suited for use on EGS and EPS substrates and on wood, plastics and rubbers. Typical applications include holding small parts in place prior to permanent lamination.

SubstratesABS = Engineering Thermoplastic made from Acrolein, Butadiene, Styrene

Al = Aluminum

EGS = Electro Galvanized Steel

EPS = Expanded Polystyrene Foam

FRP = Fiberglass Reinforced Plastics

GLV Steel = Galvanized Steel

Luan = Plywood

OSB = Oriented Strand Board

PVC = Polyvinyl Chloride

SMC = Sheet Molding Compound

SS = Stainless Steel

XPS = Extruded Polystyrene Foam

AdhesivesMCU = Moisture-Cure Polyurethanes

MCU (LES) = Moisture-Cure Polyurethanes (low energy substrates)

HM PUR = Hot-Melt Polyurethanes

EVA = Ethylene Vinyl Acetate

MMA = Methyl Methacrylates

2K PUR = Two-component Polyurethanes

2K EPO = Two-component Epoxy

For more information on recommended products in this brochure, please visit the “Bus, Truck & Rail”

or “Construction” sections of

www.aralditeadhesives.com

Legal InformationSales of the product described herein (“Product”) are subject to the general terms and conditions of sale of either Huntsman Advanced Materials LLC, or its appropriate affiliate including without limitation Huntsman Advanced Materials (Europe) BVBA, Huntsman Advanced Materials Americas Inc., or Huntsman Advanced Materials (Hong Kong) Ltd. or Huntsman Advanced Materials (Guangdong) Co., Ltd. (“Huntsman”). The following supercedes Buyer’s documents. While the information and recommendations included in this publication are, to the best of Huntsman’s knowledge, accurate as of the date of publication, NOTHING CONTAINED HEREIN IS TO BE CONSTRUED AS A REPRESENTATION OR WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, NONINFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHTS, OR WARRANTIES AS TO QUALITY OR CORRESPONDENCE WITH PRIOR DESCRIPTION OR SAMPLE, AND THE BUYER ASSUMES ALL RISK AND LIABILITY WHATSOEVER RESULTING FROM THE USE OF SUCH PRODUCT, WHETHER USED SINGLY OR IN COMBINATION WITH OTHER SUBSTANCES. No statements or recommendations made herein are to be construed as a representation about the suitability of any Product for the particular application of Buyer or user or as an inducement to infringe any patent or other intellectual property right. Data and results are based on controlled conditions and / or lab work. Buyer is responsible to determine the applicability of such information and recommendations and the suitability of any Product for its own particular purpose, and to ensure that its intended use of the Product does not infringe any intellectual property rights. The Product may be or become hazardous. Buyer should (i) obtain Material Safety Data Sheets and Technical Data Sheets from Huntsman containing detailed information on Product hazards and toxicity, together with proper shipping, handling and storage procedures for the Product, (ii) take all steps necessary to adequately inform, warn and familiarize its employees, agents, direct and indirect customers and contractors who may handle or be exposed to the Product of all hazards pertaining to and proper procedures for safe handling, use, storage, transportation and disposal of and exposure to the Product and (iii) comply with and ensure that its employees, agents, direct and indirect customers and contractors who may handle or be exposed to the Product comply with all safety information contained in the applicable Material Safety DataSheets, Technical Data Sheets or other instructions provided by Huntsman and all applicable laws, regulations and standards relating to the handling, use, storage, distribution and disposal of and exposure to the Product. Please note that products may differ from country to country. If you have any queries, kindly contact your local Huntsman representative.

Araldite®, Arathane®, and Euremelt® are registered trademarks of Huntsman Corporation or an affiliate thereof in one or more, but not all, countries.

Copyright © 2016 Huntsman Corporation. All rights reserved.

For More Informationwww.huntsman.com / advanced_materialsadvanced_materialsathuntsman.com

Americas:Huntsman Advanced Materials Americas LLC 10003 Woodloch Forest Drive The Woodlands Texas 77380 USA Tel. +1 888 564 9318 Fax +1 281 719 4047

Europe:Huntsman Advanced Materials (Switzerland) GmbH Klybeckstrasse 200 P.O. Box 4002 Basel Switzerland Tel. +41 61 299 20 41 Fax +41 61 299 20 40

Asia / Pacific:Huntsman Advanced Materials (Guangdong) Co., Ltd. Rooms 4604-4606, 46F Maxdo Center 8 Xing Yi Road Shanghai, 200336 P.R. China Tel. +86 21 2208 7588 Fax +86 21 2208 7511Customer Free Call Inquiry +86 20 8484 5000

Global Presence – 13 Manufacturing Sites, 5 Advanced Technology Centers