Latexes for Exterior Insulation Finishing Systems

AMERICAS

Arkema Coating Resins

Formulate for Performance and Value

Binders from Arkema Coating Resins Choose the Best Balance of Cost and Performance for Your Formulations

Exterior Insulation Finishing Systems (EIFS) assemblies are lightweight synthetic wall claddings used to create architectural detail and provide insulation properties to exterior building surfaces. EIFS moldings can be created in a wide variety of styles and finishes, including various colors and textures, to simulate stucco, stone or even brick.

EIFS: A Popular Choice for Architectural Cladding

From high value to high performance, there is an Arkema latex for each EIFS application, including air/moisture barriers; adhesive/basecoats; finish coats; and clear aggregate finishes. Our performance-proven line includes:• ENCOR® styrene acrylic and acrylic latexes• NEOCAR® modified acrylic polymers• NEOCAR® vinyl versatate-containing latexes• SNAP® structured nano-acrylic polymers

Figure 1 shows a typical EIFS assembly consisting of polystyrene foam insulation and thin, polymer-modified cement coatings. The assembly is attached to an approved substrate with an adhesive or mechanical fastener.

By combining specific binders into a system, you can formulate across the full cost/performance range and dial in the performance features you need, including:• Excellent dirt pickup resistance• Variable moisture vapor transmission rates for specific climate zones• Outstanding flexibility• Conformance to ANSI/EIMA 99A-2001 requirements

Approved substrateAir/moisture barrierAdhesive coatFoam insulation boardBasecoatReinforcing mesh

Finish coat(s)

1

Visit www.arkemacoatingresins.com and view our interactive Product Finder for additional technical and product information, or to request a sample.

Each suggested formulation includes one of these binders:

ENCOR® 496 Latex – the most versatile product in our EIFS line, with it you can formulate a high performance air/moisture barrier, an adhesive/basecoat with excellent adhesion and flexibility and a dirt pickup resistant finish coat. Cement compatible.

NEOCAR® 493 Latex – this vinyl versatate-containing latex offers good performance in high value formulations, helping you meet your customer’s performance requirements while you manage raw material costs. Cement compatible.

ENCOR® 446 Latex – this high solids latex can be used to formulate both adhesive mastics and cement containing adhesives/basecoats. Cement compatible.

ENCOR® 413 Latex – this proven performer can be used to formulate adhesive/basecoats and finish coats. Cement compatible.

ENCOR® 490 Latex – this latex can be used to formulate adhesive/basecoats and dirt pick up resistant finish coats. Figure 2 (see page 2) details dirt pickup resistance performance. Cement compatible.

SNAP® 720 Polymer – this structured nano-acrylic polymer provides outstanding performance in clear aggregate finishes. Figure 3 (see page 2) details water-whitening resistance properties important to long-term performance in clear aggregate sealers.

NEOCAR® 820 Acrylic – this high performance polymer is an alternative for clear aggregate sealers, offering ultra-small particle size and extreme hydrophobicity.

Physical Properties

Textured Finishes or Refinish Coat

ENCOR® 496 Styrene Acrylic 50 8 8.8 0.20 300 0 -7 High flexibility makes it suitable for use in extreme cold weather climates. Dirt pickup resistant finish coat.

ENCOR® 490 Acrylic 47 6 8.8 0.40 50 11 13 Dirt pickup resistant finish coat.

ENCOR® 413 Acrylic 47 9 8.8 0.40 50 11 13 Workhorse product.

NEOCAR® 493 Vinyl Acetate-Versatate 55 4 9.1 0.30 50 2 5 Excellent cost-performance balance.

Adhesive-Basecoat

ENCOR® 496 Styrene Acrylic 50 8 8.8 0.20 300 0 -7 Passes relevant performance requirements of ANSI/EIMA 99A-2001; good low temperature flexibility.

ENCOR® 413 Acrylic 47 9 8.8 0.40 50 11 13 Passes relevant performance requirements of ANSI/EIMA 99A-2001.

ENCOR® 490 Acrylic 47 6 8.8 0.40 50 11 13 Passes relevant performance requirements of ANSI/EIMA 99A-2001.

NEOCAR® 493 Vinyl Acetate-Versatate 55 4 9.1 0.30 50 2 5 Passes relevant performance requirements of ANSI/EIMA 99A-2001; economical.

ENCOR® 446 Styrene Acrylic 62 6 8.8 0.30 550 6 12 Mastic adhesive, cement compatible.

Product Chemistry Solids(%) pH Value Density

Particle Size(Micron) Viscosity MFFT

(°C)Tg

(°C) Applications

Air-Moisture Barriers

ENCOR® 496 Styrene Acrylic 50 8 8.8 0.20 300 0 -7Can be used to formulate air-moisture barriers with moisture vapor transmission rate > 25 Perms. Cement compatible and so can also be used in adhesive/basecoats. Dirt pickup resistant finish coat.

Clear Aggregate Finishes

SNAP® 720 Acrylic 49 7 8.9 0.08 500 0 NA Low VOC, high gloss clear sealers, excellent block and blush resistance.

NEOCAR® 820 Acrylic 45 8.5 8.5 0.07 150 17 20 Ultra-small particle size; extremely hydrophobic for clear sealers.

Note: Products from Arkema Coating Resins that display the ENVIA® trade name have passed our rigorous certification program. ENVIA® certified products have been designed to assist formulators in meeting their sustainability and regulatory goals in their finished products. Typical properties not to be construed as specifications.

Dirt Pickup Resistance Figure 2 shows a comparison of dirt pickup resistance of a standard EIFS panel using a commercial ly- available acrylic system to an EIFS assembly based on ENCOR® 496 latex in an Arkema Level III system. The assemblies were coated with iron oxide and coal ash in the form of slurries. The slurry stain was allowed to dry on for one day and the panels were washed with running water. The Arkema Level III system displays exceptional resistance compared to the standard EIFS assembly.

Water-whitening ResistanceFigure 3 shows a comparison of water-whitening resistance of SNAP® 720 latex compared to a commercially available 100% acrylic typically used in aggregate applications. The latex was applied to panels at 3 mils wet film thickness, dried overnight at room temperature, and partially submerged in water for 24 hours. SNAP® 720 latex demonstrated significantly better water-whitening resistance.

Figure 2

Figure 3

Standard Acrylic

Iron Oxide Coal Ash

ENCOR® 496 Latex

Competitive Acrylic SNAP® 720

2

Now it is simple to engineer an EIFS assembly with the right cost/performance balance. From high value to high performance there is an Arkema latex that offers performance and formulating flexibility.

Level I – your choice for high valueLevel II – your choice for a balance of value and performanceLevel III – your choice for best performance

System/Property Level I Level II Level III

Applications Economical Standard Dirt Pickup Resistance

Dirt Pickup Resistance Flexible

Air/Moisture Barrier ENCOR® 496 Latex

Adhesive/BasecoatNEOCAR® 493 ENCOR® 413 ENCOR® 490 ENCOR® 496

Finish Coat

Water Vapor Transmission Rate, PERMS ‡ 5 - 30 5 - 30 5 - 30 5 - 30

Impact Resistance Good Good Good Excellent

Tensile Strength Good Good Good Good

Low Temperature Flexibility Fair Fair Fair Excellent

Dirt Pickup Resistance Fair Fair Excellent Excellent

‡ ENCOR® 496 Latex can be formulated to produce an Air/Moisture barrier with either high or low water vapor transmission as dictated by the climate zone.

Engineer EIFS with Arkema Polymers

3

Formulating the Appropriate Air/Moisture Barrier

Uncontrolled air leakage and rain penetration cause a wide range of building problems: wasted energy, uncomfortable drafts, mold growth and premature deterioration of the building. Air/moisture barrier systems are used to make the building perform better. An air/moisture barrier system wraps the building shell and ensures that it protects the building from the effects of air and water infiltration.

The water vapor permeability (WVP) of the air/moisture barrier should be dictated by climate region. For building in most parts of North America, where winter heating conditions predominate, the air/moisture barrier should be highly permeable (>25 PERMS) to water vapor to allow any moisture which enters the wall cavity to easily exit. In humid regions where warm-weather cooling predominates within buildings, the air/moisture barrier should have a lower permeability (10 PERMS) to minimize the entry of moisture into the wall cavity.

High WVP

Low WVP

OUT IN

Latex paint

Polymer-based stucco rendering

Exterior rigid insulation

Drainage space

Air-moisture coating

Exterior gypsum, plywood or oriented strand board

Wall cavity

Vapor Barrier

Gypsum wall board

Latex paint

Vapor Profile

Warm-moist climates(lo perm)

Cold climates(hi perm)

WARM-MOIST COOL-DRY COLD-DRY WARM-MOIST

Vapor Profile

OUT IN

Ingredient Pounds

WaterMethocel™ J20M S thickenerFoamaster® NXZ defoamerProxel® GXL biocideSand – FineENCOR® 413 Latex or ENCOR® 490 Latex

Portland Cement, Type 1

261.6 1.5 1.0 1.0

470.3 160.1

752.5

Total 1648.0

Standard Adhesive/Basecoat

4

FormulationsAir/Moisture BarrierLow Vapor Transmission Rate – 7.6 Perms

High Vapor Transmission Rate – 27.5 Perms

Ingredient Pounds

WaterCoadis™ 123K dispersantSurfynol® 104 HE surfactantPropylene GlycolFoamaster® NXZ defoamerTi-Pure® R-960 pigmentDrikalite® pigmentEagle Zinc pigmentPolyphase® 663 mildewcide

ENCOR® 496 LatexTexanol® coalescentFoamaster® NXZ defoamerAmmonium HydroxideViscoatex™ 730 thickenerCoapur™ XS-71 thickenerSand – Medium Fine

126.4 23.72.3

17.81.4

92.9 334.5 23.2 6.5

511.13.83.81.54.15.6

55.8

Total 1214.5

Ingredient Pounds

WaterCoadis™ BR-40 dispersantPotassium TripolyphosphateSurfynol®104 HE surfactantPropylene GlycolFoamaster® NXZ defoamerTi-Pure® R-960 pigment Drikalite® pigmentPolyphase® 663 mildewcide

ENCOR® 496 LatexTexanol® coalescentFoamaster® NXZ defoamerAmmonium HydroxideCoapur™ XS-52 thickenerCoapur™ 2025 thickenerSand – Medium Fine

98.8 7.91.9 2.4

18.41.4

94.0 369.1

6.7

527.33.93.91.51.91.9

57.5

Total 1191.7

Economical Adhesive/Basecoat

Formulations Adhesive and Basecoats

Ingredient Pounds

WaterMethocel™ J20M S thickenerAmmonium Hydroxide, 28%Foamaster® NXZ defoamerProxel® GXL biocideSand – FineNEOCAR® 493 Latex

Portland Cement, Type 1

290.9 3.0 3.5 1.01.0

521.3 107.0

751.9

Total 1679.0

Ingredient Pounds

WaterMethocel™ J20M S thickenerFoamaster® B defoamerProxel® GXL biocideSand – FineENCOR® 496 Latex

Portland Cement, Type 1

82.0 5.0 1.0 1.0

509.7 291.7

888.4

Total 1778.8

High Flexibility Adhesive/Basecoat

Ingredient Pounds

WaterCellosize QP-52M thickenerTergitol™ NP-10 surfactantPotassium TripolyphosphateFoamaster® NXZ defoamerPropylene GlycolTexanol® coalescentPolyphase® AF-1 mildewcideASP-400 pigmentCamel Carb pigmentSand – Medium FineENCOR® 490 Latex

313.5 2.0 3.0 2.00.3

26.0 6.0 3.0

15.0 50.0

675.0 213.0

Total 1308.8

5

Ingredient Pounds

WaterCellosize QP-52M thickenerTergitol™ NP-10 surfactantPotassium TripolyphosphateFoamaster® NXZ defoamerPropylene GlycolTexanol® coalescentPolyphase® AF-1 mildewcideASP-400 pigmentCamel Carb pigmentSand – Medium FineNEOCAR® 493 Latex

344.5 2.0 3.0 2.00.3

26.0 6.0 3.0

15.0 50.0

675.0 182.0

Total 1308.8

Economical Textured Finish Coat

Ingredient Pounds

WaterCoadis™ 123K dispersantSurfynol®104E surfactant Propylene GlycolFoamaster® NXZ defoamerTi-Pure® R-960 pigmentDrikalite® pigmentEagle Zinc pigmentActicide BW20 biocidePolyphase® 663 mildewcide

ENCOR® 496 LatexTexanol® coalescent Foamaster® NXZ defoamerAmmonium Hydroxide, 28%Viscoatex™ 730 thickener

99.0 25.5 2.5

10.01.5

98.0 360.0 25.0 1.1 7.0

550.04.14.11.66.0

Total 1196.5

Formulations Finish and Refinish Coats

Ingredient Pounds

SNAP® 720 PolymerBYK 024 defoamerColorquartz Aggregate (3M)Cellosize QP-100MHCoapur™ 817W thickenerProxel® GXL biocideCopper Nitrite, 2% solutionAmmonium Hydroxide, 28%

174.0 2.0

937.0 3.52.5 2.0 4.0 2.0

Total 1417.0

Elastomeric Dirt Pickup Resistant Finish Coat

Ingredient Pounds

WaterCellosize ER-4400 thickenerPropylene GlycolCoadis™ 144A dispersantTriton™ CF-10 surfactantRhodoline® 643 defoamerProxel® GXL biocideAmmonium Hydroxide, 28%Ti-Pure® R-706 pigmentMinex® 4 pigmentOptiwhite® pigmentCoapur™ 2020 thickener

ENCOR® 490 LatexRhodoline® 643 defoamerOptifilm® 400 pigmentAmmonium Hydroxide, 28%Polyphase® 678 mildewcide

215.05.0

10.0 9.02.5 1.0 2.0 1.0

225.0 170.050.07.0

451.01.5

14.82.0

10.5

Total 1167.4

Dirt Pickup Resistant Finish Coat

Dirt Pickup Resistant Textured Finish Coat

Clear Aggregate Finish

Surfynol® is a registered trademark of Air Products & Chemicals Inc.Foamaster® is a registered trademark of Cognis IP Management GmbHTi-Pure® is a registered trademark of E.I. DuPont de Nemours and CompanyDrikalite® is a registered trademark of ECC America Inc.Polyphase® is a registered trademark of Troy Technology Corporation, Inc.Texanol® is a registered trademark of Eastman Chemical CompanyMethocel™, Tergitol™ and Triton™ are trademarks of The Dow Chemical Co. Optiwhite® is a registered trademark of Burgess Pigment CompanyProxel® is a registered trademark of Arch UK Biocides Ltd.Rhodoline® is a registered trademark of Rhodia ChemieMinex® is a registered trademark of Unimin CorporationOptifilm® is a registered trademark of Eastman Chemical Company

SNAP®, ENCOR®, NEOCAR® and ENVIA® are registered trademarks of Arkema Inc.

Coadis™, Coapur™ and Viscoatex™ are trademarks of Coatex SASForm No.309000729

Arkema Inc.410 Gregson Drive

Cary, NC 27511919-469-6700

1-800-777-8227www.arkemacoatingresins.com

IMPORTANT: The statements, technical information and recommendations contained herein are believed to be accurate as of the date hereof. Since the conditions and methods of use of the product and of the information referred to herein are beyond our control, Arkema expressly disclaims any and all liability as to any results obtained or arising from any use of the product or reliance on such information; NO WARRANTY OF FITNESS FOR ANY PARTICULAR PURPOSE, WARRANTY OR MERCHANTABILITY OR ANY OTHER WARRANTY, EXPRESS OR IMPLIED, IS MADE CONCERNING THE GOODS DESCRIBED OR THE INFORMATION PROVIDED HEREIN. The information provided within relates only to the specific product designated and may not be applicable when such product is used in combination with other materials or in any process. The user should thoroughly test any application before commercialization. Nothing contained herein constitutes a license to practice under any patent and it should not be construed as an inducement to infringe any patent and the users is advised to take appropriate steps to be sure that any proposed use of the product will not result in patent infringement.

The product data provided in this document are typical values, intended only as guides, and should not be construed as sales specifications.

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