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On February 1, 2022, Hexion Holdings Corporation announced that it has completed the sale of its Coatings and Composite businesses, which includes the epoxy specialty resins and base epoxy resins and intermediates product lines, to Westlake Chemical Corporation. For epoxy coatings and composite product inquiries, please contact customer service at or

EPON™ Resin 8280


EPON™ Resin 8280 has been designed especially for formulating filled compounds for a wide variety of structural applications, including bonding, electrical encapsulating, tooling, flooring and most construction uses. EPON Resin 8280 is a low molecular weight resin with outstanding resistance to pigment and filler settling, which gives greater stability to filled systems. The resin also has superior resistance to foaming under vacuum and has an adjusted, controlled reactivity with amine curing agents, which serves to extend pot Iife and working life characteristics. In addition, viscosity stability — often a problem in anti-settling resins — presents no problem for EPON Resin 8280. It is as good in viscosity stability as other conventional liquid EPON Resins. Furthermore, it yields products with high physical strength, excellent chemical resistance and good electrical properties. Typical properties for several EPON Resin 8280 amine-cured systems are given below.


  • Low foaming
  • High resistance to filler settling
  • Controlled reactivity with amine curing agents

Sales Specification

Property Standard Value Unit Test Method
Color 1 max. Gardner ASTM D1544
Viscosity at 25°C 110 - 150 P ASTM D445
Weight per Epoxide 185 - 195 g/eq ASTM D1652

Typical Properties

Property Standard Value Unit Test Method
Density at 20°C 9.7 lb/gal ASTM D1475
Refractive Index at 25°C 1.57 - 1.575
Specific gravity at 20°C 1.168 g/mL

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