D.E.R.™ 337-X80
Epoxy Resin

Description

D.E.R.™ 337-X80 Epoxy Resin is a semi-solid reaction product of epichlorohydrin and bisphenol A dissolved in xylene.

Introduction

D.E.R. 337-X80 Epoxy Resin is a solution of D.E.R. 337 Epoxy Resin in xylene at an 80 wt% solids content. D.E.R. 337-X80 Epoxy Resin is mainly used in adhesives and protective coatings, or as a modifier for other epoxy resins to improve impact strength, extensibility and adhesion. The excellent chemical and corrosion resistance and physical properties have established D.E.R. 337-X80 Epoxy Resin as a major raw material for epoxy coal tar combinations and higher solids content marine coatings. D.E.R. 337-X80 Resin can be used to modify the performance or handling of liquid epoxy resin such as D.E.R. 331 Liquid Epoxy Resin, or epoxy novolac resins such as D.E.N.™ 431 and D.E.N. 438 Epoxy Novolac Resins.

A wide variety of curing agents is available to cure this resin at ambient conditions. Most frequently used are aliphatic polyamines, polyamides and modified versions of these. If anhydride or catalytic curing agents are employed, elevated temperature and long-post cures are required to develop full end properties.

Typical Applications

This product is suitable for use in applications such as:

• Adhesives
• Civil Engineering
• Marine and Protective Coatings

Product Stewardship

Dow 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. Dow 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.

Customer Notice

Dow encourages its customers and potential users of Dow products to review their applications for such products from the standpoint of human health and environmental quality. To help ensure that Dow products are not used in ways for which they were not intended or tested, Dow personnel are available to assist customers in dealing with ecological and product safety considerations. Your Dow sales representative can arrange for the proper contacts. Dow literature, including MSDS or SDS, should be consulted prior to the use of Dow products.

Medical Application Policy

Dow will not knowingly sell or sample any product or service (“Product”) into any commercial or developmental application that is intended for:

1. permanent (long term) contact with internal body fluids or internal body tissues. Long term is a use which exceeds 72 continuous hours;
2. use in cardiac prosthetic devices regardless of the length of time involved (cardiac prosthetic devices include, but are not limited to, pacemaker leads and devices, artificial hearts, heart valves, intra-aortic balloons and control systems and ventricular bypass assisted devices);
3. use as a critical component in medical devices that support or sustain human life; or
4. use specifically by pregnant women or in applications designed specifically to promote or interfere with human reproduction.

Additionally, all Products intended for use in pharmaceutical applications must pass the then current Pharmaceutical Liability Guidelines. For additional information please contact your regular Dow representative.

Food Contact Statement

When properly formulated and cured for food contact applications, this resin will comply with the U.S. Food, Drugs and Cosmetics Act as amended under Food Additive Regulation 21 CFR 175.300(b)(3)(viii)(a); “Epoxy resins, as basic polymer”. This use is also subject to good manufacturing practices and any limitations specified in each regulation. Please consult the regulations for complete details.

If your applications include food contact requirements, please contact your Dow representative for further information and forthcoming EC regulations. Also consult the Dow data sheet, Food Additive Status for Epoxy Resins, Curing Agents and Epoxy Novolac Resins, Form No. 296-01425.

Regulatory Status

D.E.R. 337-X80 Resin is a solution of D.E.R. 337 Epoxy Resin in xylene. D.E.R. 337 Epoxy Resin is regarded as a polymer according to the 6th Amendment of Council Directive 67/548/EEC and as a substance according to Council Directive 92/32/EEC of 30 April 1992; the 7th Amendment of that same directive. D.E.R. 337 Epoxy Resin has been reported to the EC Commission as a No-Longer Polymer (NLP), is registered under NLP # 500-033-5, and is, therefore, exempt from the European Inventory of Existing Chemical Substances (EINECS). In addition, Dow confirms that the chemicals and intentional additives which form the basis of this product are listed on EINECS.

The xylene solvent component (CAS registration number 1330-20-7) in this epoxy resin solution is listed on EINECS under the registration number 215-535-7. A major impurity of the xylene solvent is ethylbenzene (EINECS 202-849-4, CAS number 100-41-4).

For more information on the regulatory status of this product, please refer to the MSDS or SDS for this product.

Safe Handling Information

Dow provides its customers with a product specific Material Safety Data Sheet (MSDS) or Safety Data Sheet (SDS) to cover potential health effects, safe handling, storage, use and disposal information. Dow strongly encourages its customers to review the MSDS or SDS on its products and other materials prior to their use.

D.E.R. 337-X80 Epoxy Resin is supplied in bulk, intermediate bulk containers or in 215 kg tight-head drums. The resin should be stored in a dry place in its original closed packaging. This semi-solid epoxy resin solution should retain its chemical properties for a period of at least 24 months.

For further handling information consult the Dow brochure entitled, DOW Epoxy Resins Product Stewardship Manual, Safe Handling and Storage, Form No. 296-00312 and the Dow technical bulletin, Product Coding, Shelf-life and Storage Stability, Form No. 296- 01657.

Dow Material Safety Data Sheets (MSDS) contain pertinent information that you may need to protect your employees and customers against any known health or safety hazards associated with our products. Under the OSHA Hazard Communication Standard, workers must have access to and understand MSDS on all hazardous substances to which they are exposed. Thus, it is important that you provide appropriate training and information to your employees and make sure they have available to them MSDS on any hazardous products in their workplace.

Dow sends MSDS on non-OSHA-hazardous as well as OSHA-hazardous products to its customers upon initial shipment, including samples. If you do not have access to one of these MSDS, please contact your local Dow representative for a copy.

Updated MSDS are sent upon revision to all customers of record. In addition, MSDS are sent annually to all customers receiving products deemed hazardous under the Superfund Amendments and Reauthorization Act.

MSDS should be obtained from suppliers of other materials recommended in this bulletin.

Dow is a member of the American Chemistry Council and is committed to ACC's Responsible Care^® Program.