EPOXY RESINS. Product Overview Guide NORTH AMERICA

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1 EPOXY RESINS Product Overview Guide NORTH AMERICA

2 Expanding Opportunities for Performance and Differentiation Epoxy technology is a fundamental building block for innovation across broad and diverse industries around the world. Dow is leading the way, applying advanced epoxy chemistry to address critical material challenges and help meet society s energy, transportation, electronics, and infrastructure needs. 2

3 Dow is a global supplier of epoxy resins, diluents, curing agents, and intermediates. With more than 50 years of innovation, we offer advanced epoxy products and solutions based on the industry s leading product and process technology. And, as one of the most vertically-integrated epoxy suppliers, we are a highly reliable source of supply. Dow is committed to your success. To better assist you during each stage of formulation development, we have compiled this convenient overview of resin products available in North America. Use it in combination with product information for our robust line of epoxy hardeners to compare product options and decide which Dow products provide the performance required in your applications. Talk to your Dow representative to learn more about how Dow can provide the products and support you need to strengthen system differentiation and your competitive position in the marketplace. 3

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5 Calculation of Stoichiometric Ratios To obtain optimum properties with polyfunctional epoxide-reactive curing agents, particularly the amines, it is desirable to react the resin and the curing agent at approximately stoichiometric quantities. To determine the ratio required, calculations can be made as follows, using D.E.H. 20 epoxy hardener (NH 2 CH 2 CH 2 NH CH 2 CH 2 NH 2 ) as an example: 1 To 2 To calculate the Amine H equivalent weight, use the following equation: calculate the stoichiometric ratio of D.E.H. 20 hardener to use with D.E.R. 331 epoxy resin having an epoxide equivalent weight of 189: Equation 1 Amine H eq wt = MW of amine no. of active hydrogens Example Amine H eq wt D.E.H. 20 = = 20.6 gr/eq 5 Equation 2 phr 1 of amine = Amine H eq wt x 100 Epoxide eq wt of resin Example phr D.E.H. 20 hardener to be used with D.E.R. 331 epoxy resin phr = 20.6 x 100 = Frequently, epoxy resins are blended, filled, or modified with reactive and non-reactive components. It is therefore necessary to adjust the concentration of the curing agent to cure only the portion of the mix that is reactive; e.g., the resins and any reactive diluent present. This may be simply done by calculating the epoxide equivalent weight (EEW) of the total mix and then applying equation (2) to determine the amount of curing agent to add to 100 parts of formulation. Equation 3 EEW of mix = Total Wt Wt a + Wt b + Wt c EEW a EEW b EEW c Total weight includes all materials, both reactive and non-reactive. a,b,c, etc., are only the materials reactive with the curing agent, and are characterized by an epoxy ring. Example 100 parts D.E.R. 331 Average EEW parts D.E.R. 337 Average EEW parts BDDGE (diluent) Average EEW parts Filler 460 Total EEW of mix = 460 = = By Equation 2 Amount D.E.H. 20 = 20.6 x 100 = 5.27 parts per hundred 391 parts filled formulation TM Trademark of The Dow Chemical Company ( Dow ) or an affiliated company of Dow 1 Parts by wt per 100 parts resin 5

6 Resins from Dow Liquid Epoxy Resins Grade EEW (gr/eq) Bisphenol A Epoxy Resins Viscosity 25 C) Description D.E.R High purity diglycidyl ether of bisphenol A. Its high purity and low oligomer content assures uniform performance, exceptionally low viscosity and can provide improved elevated temperature properties over standard epoxy resins. This resin grade is mainly used in filament winding, electrical laminates and encapsulation applications. D.E.R D.E.R. 383 epoxy resin is a low viscosity bisphenol A epoxy resin. Applications are similar to those of D.E.R. 331 liquid epoxy resin. D.E.R. 383 epoxy resin frequently crystallizes at room temperature. Heating to C restores the resin to a liquid state. Long-term warm storage may result in a slight discoloration but does not affect the resin performance. D.E.R D.E.R. 330 epoxy resin is a low viscosity bisphenol A epoxy resin commonly used in civil engineering and industrial coatings. D.E.R. 330 epoxy resin frequently crystallizes at room temperature, Heating to C restores the resin to liquid state. Long-term warm storage may result in slight discoloration but does not effect the resin performance. D.E.R A widely used, general-purpose liquid epoxy resin based on bisphenol A. It is recognized as a standard from which many variations have been developed. D.E.R High viscosity, fast reacting bisphenol A epoxy resin. Modified Bisphenol A Epoxy Resins D.E.R Diglycidylether of bisphenol A/CGE. D.E.R Diglycidylether of bisphenol A/CGE. D.E.R Diglycidylether of bisphenol A/reactive diluent. D.E.R Aliphatic glycidyl ether reactive diluent, modified liquid epoxy resin which is very similar to D.E.R. 324 liquid epoxy resin but with lower diluent content. D.E.R D.E.R. 324 liquid epoxy resin offers low viscosity and low surface tension. The low surface tension explains why this resin wets the surface better, gives better adhesion and will have slightly lower viscosity at any given filler loading. The diluent increases pot-life, flexibility (impact resistance) and acid resistance, but limits the solvent resistance. D.E.R. 324 liquid epoxy resin is prone to crystallization. D.E.R Diglycidylether of bisphenol A/AGE. D.E.R Diglycidylether of bisphenol A/TMPTGE. D.E.R Modified liquid epoxy resin. XZ Diglycidylether of bisphenol A/BDDGE. TM Trademark of The Dow Chemical Company ( Dow ) or an affiliated company of Dow 6

7 Liquid Epoxy Resins (cont.) Grade EEW (gr/eq) Viscosity 25 C) Description Modified Bisphenol A/F Epoxy Resins D.E.R D.E.R. 353 liquid epoxy resin is a low viscosity epoxy resin with a very low crystallization tendency. The performance of D.E.R. 353 in ambient cure formulations is similar to those obtained when using D.E.R. 324 liquid epoxy resin. Bisphenol F Epoxy Resins D.E.R Standard bisphenol F-based epoxy resin of low viscosity, used for solvent-free coatings, concrete reinforcements, adhesives, electrical insulation and filament winding. This resin can provide improved resistance performance against solvents compared to standard bisphenol A liquid epoxy resins. Flexible Epoxy Resins D.E.R D.E.R. 736 is a short chain length polyglycol di-epoxide liquid resin. Its applications include coatings and adhesives for improved flexibility, elongation, and impact resistance. D.E.R D.E.R. 732 is a long chain length polyglycol di-epoxide liquid resin. Its applications include coatings and adhesives for improved flexibility, elongation, and impact resistance. D.E.R Diglycidylether of bisphenol A/flexible epoxy resin. D.E.R D.E.R epoxy resin is designed to impart flexibility into epoxy binder systems. In combination with suitable curing agents, high elongations at break can be achieved, at room temperature as well as at -20 C. 7

8 Resins from Dow Epoxy Emulsions and Dispersions Grade EEW (gr/eq) on solids Solids Content (wt%) Description D.E.R. TM Aqueous liquid epoxy resin emulsion of the D.E.R. 331 liquid epoxy resin type. This material is suitable for coatings on metallic substrates, coating on concrete and also in concrete ad-mixtures (i.e. epoxy cement concrete). Note that the use of water-borne systems requires some control of atmospheric conditions (temperature and humidity) to develop optimum performance and appearance. D.E.R Aqueous semi-solid epoxy novolac resin emulsion of the D.E.N. TM 438 epoxy novolac resin type. This product can produce highly cross-linked matrices, providing excellent heat and chemical resistance similar to solvent-borne novolac resins. D.E.R Experimental aqueous solid 1-type epoxy resin dispersion of the D.E.R. 671 solid epoxy resin type. This resin emulsion is not only suggested for corrosion protection applications on steel but can also be used for coatings on concrete where solvent cannot be tolerated. Epoxy Toughening Agents and Toughened Epoxy Resins Grade FORTEGRA TM 100 Epoxy Toughening Agent FORTEGRA 102 Toughened Epoxy Resin FORTEGRA 104 Toughened Epoxy Resin FORTEGRA 201 Toughened Epoxy Resin FORTEGRA 301 Toughened Epoxy Resin EEW (gr/eq) Viscosity 25 C) Description N/A FORTEGRA 100 epoxy toughener is a low viscosity toughening agent, designed for use in amine cured epoxy systems Blend of bisphenol A liquid epoxy resin (50 wt%) and a block copolymer toughening agent (50 wt%) N/A Blend of bisphenol A solid epoxy resin (88 wt%) and FORTEGRA 100 (12 wt%) , ,000 Blend of bisphenol A liquid epoxy resin and a carboxyl terminated butadiene-acrylonitrile elastomer (40 wt%) ~70,000 Blend of bisphenol A liquid epoxy resin and core shell rubber particles (15 wt%). TM Trademark of The Dow Chemical Company ( Dow ) or an affiliated company of Dow 8

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11 Epoxy Novolac Resins Grade EEW on solids (gr/eq) Viscosity 25 C) Description D.E.N. TM D.E.N. 425 epoxy novolac resin has an average functionality of 2.5. D.E.N D.E.N. 431 epoxy novolac resin has multi-epoxy functionality (± 2.8) which makes it useful in adhesives, electrical and structural laminates, coatings and castings for elevated temperature service. D.E.N. 431 will exhibit high chemical resistance and excellent elevated temperature performance. Adhesives based on D.E.N. 431 are ideal binders for abrasives in grinding and polishing products. D.E.N D.E.N. 438 is a widely used, general-purpose epoxy novolac resin. It is recognized as a standard for high temperature applications. D.E.N. 438 has multi-epoxy functionality (± 3.6). D.E.N. 438L Slightly lower viscosity version of D.E.N D.E.N. 438-A Solution of D.E.N. 438 in acetone. D.E.N. 438-EK Solution of D.E.N. 438 in methyl ethyl ketone. D.E.N. 438-MAK Solution of D.E.N. 438 in methyl n-amyl ketone. D.E.N. 438-MK Solution of D.E.N. 438 in methyl isobutyl ketone. D.E.N. 438-X Solution of D.E.N. 438 in xylene. D.E.N D.E.N. 439 is a widely used, general-purpose epoxy novolac resin. It has multi-epoxy functionality (±3.8) which is slightly higher than D.E.N. 438 epoxy novolac resin. D.E.N. 439-EK Solution of D.E.N. 439 in methyl ethyl ketone. Brominated Resins Grade EEW on solids (gr/eq) Viscosity 25 C) Description D.E.R. TM 530-A Brominated epoxy resin in acetone. D.E.R. 538-A Brominated epoxy resin in acetone. D.E.R N/A Solid epoxy resin of the tetrabromo bisphenol A epichlorohydrin type. Softening point: C. D.E.R Solid brominated epoxy resin. D.E.R. 592-A Brominated epoxy resin in acetone. D.E.R Brominated epoxy resin in DOWANOL TM PM glycol ether. 1 at 51.7 C 2 at 71 C 3 at 150 C TM Trademark of The Dow Chemical Company ( Dow ) or an affiliated company of Dow 11

12 Resins from Dow Solid Epoxy Resins Grade EEW (gr/eq) Low Molecular Weight Solids 1 at 150 C 2 40 wt% in diethylene glycol monobutyl ether TM Trademark of The Dow Chemical Company ( Dow ) or an affiliated company of Dow 12 Softening Point ( C) Description D.E.R. TM D.E.R. 661 solid epoxy resin is a standard 1-type epoxy resin. Formulated with suitable hardeners it forms an excellent base for many high quality chemical-resistant coatings withstanding exposure to corrosive atmospheres. D.E.R Low molecular weight 1.5-type epoxy resin. D.E.R. 662E D.E.R. 662E solid epoxy resin is a standard 2-type epoxy resin developed for use mainly in powder coatings where it provides excellent flow. D.E.R Low molecular weight 2.5-type epoxy resin. D.E.R. 662UH Low molecular weight 2.5-type epoxy resin. D.E.R. 663U Low molecular weight 3-type epoxy resin. D.E.R. 663UE Low molecular weight 3-type epoxy resin for both pure epoxy and epoxy/polyester powder coatings requiring good gloss, smoothness and excellent flexibility. D.E.R Low molecular weight 4-type epoxy resin. Non-powder grade solid epoxy resin catalyzed for esterification. D.E.R. 664U Medium molecular weight 4-type epoxy resin for both decorative and functional coatings. D.E.R. 664UE Medium molecular weight 4-type epoxy resin for both decorative and functional coatings to provide improved viscosity characteristics and greater flexibility. Specialty Solids D.E.R A Low molecular weight solid epoxy resin containing 10 wt% polyacrylate flow modifier. D.E.R. 642U Novolac-modified, medium molecular weight solid epoxy resin for functional powder coatings requiring high chemical resistance. D.E.R. 672U Novolac-modified, high molecular weight solid epoxy resin for more flexible, corrosion-resistant epoxy powder coatings. D.E.R Modified bisphenol A solid epoxy resin for high flow, high gloss powder coatings. D.E.R High temperature performance solid epoxy resin for fusion-bonded epoxy powder coatings. High Molecular Weight Solids D.E.R High molecular weight 5-type epoxy resin. D.E.R. 667E High molecular weight 7-type epoxy resin with good solution stability. D.E.R High molecular weight 8-type epoxy resin designed for use in one pack stoving enamels for metal decoration, interior and exterior can coatings, tube and drum linings, coil primers and many other industrial applications. D.E.R High molecular weight 9-type epoxy resin. (solution visc.) D.E.R. 669E High molecular weight 9-type epoxy resin with good solution stability.

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15 Epoxy Resin Solutions Grade EEW (gr/eq) on solids Viscosity 25 C) Description D.E.R. TM 337-DA N/A Solution of D.E.R. 337 with diacetone alchohol. D.E.R. 337-X Solution of D.E.R. 337 in xylene. D.E.R. 337-X Solution of D.E.R. 337 in xylene. D.E.R. 338-X Solution in xylene. D.E.R. 660-B Semi-solid epoxy resin solution of D.E.R. 660 in butanol. D.E.R. 660-MAK Semi-solid epoxy resin solution of D.E.R. 660 in methyl n-amyl ketone. D.E.R. 660-PA Semi-solid epoxy resin solution of D.E.R. 660 in propyl acetate. D.E.R. 660-X Semi-solid epoxy resin solution of D.E.R. 660 in xylene. D.E.R. 661-A Solution of D.E.R. 661 in acetone. D.E.R. 661-A Solution of D.E.R. 661 in acetone. D.E.R. 671-MAK Solution of D.E.R. 671 in methyl n-amyl ketone. D.E.R. 671-PM Solution of D.E.R. 671 in DOWANOL TM PM glycol ether. D.E.R. 671-T Solution of D.E.R. 671 in toluene. D.E.R. 671-X Solution of D.E.R. 671 in xylene. D.E.R. 671-X Solution of D.E.R. 671 in xylene. D.E.R. 671-XM Solution of D.E.R. 671 in xylene/methyl isobutyl ketone. D.E.R. 684-EK min Solution of an ultra-high molecular weight epoxy resin. It has essentially no epoxy functionality and provides coatings with outstanding physical and chemical resistance properties by solvent evaporation alone. Main applications include maintenance- and flash-primers, shop coats, wire enamels, road markers and clear coatings for brass, chrome and aluminium. 1 cst TM Trademark of The Dow Chemical Company ( Dow ) or an affiliated company of Dow 15

16 Product Stewardship The Dow Chemical Company has a fundamental concern for all who make, distribute, and use its products, and for the environment in which we live. This concern is the basis of our Product Stewardship philosophy by which we assess the health and environmental information on our products and then take the appropriate steps to protect employee and public health and the environment. The Dow Chemical Company has enduring commitments to Responsible Care in the management of chemicals worldwide. Our Product Stewardship program rests with every individual involved with Dow products from the initial concept and research to the manufacture, sale, distribution, and disposal of each product. Contact Us to Learn More Toll Free I Telephone I Fax NOTICE: No freedom from infringement of any patent owned by Dow or others is to be inferred. Because use conditions and applicable laws may differ from one location to another and may change with time, Customer is responsible for determining whether products and the information in this document are appropriate for Customer s use and for ensuring that Customer s workplace and disposal practices are in compliance with applicable laws and other government enactments. The product shown in this literature may not be available for sale and/or available in all geographies where Dow is represented. The claims made may not have been approved for use in all countries. Dow assumes no obligation or liability for the information in this document. References to Dow or the Company mean The Dow Chemical Company and its consolidated subsidiaries unless otherwise expressly noted. NO WARRANTIES ARE GIVEN; ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY EXCLUDED. Trademark of The Dow Chemical Company ( Dow ) or an affiliated company of Dow Responsible Care is a service mark of the American Chemistry Council Form No AMS