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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 8201


EPON™ Resin 8201 is a liquid epoxy resin blend with superior resistance to pigment and filler settling; thus giving greater stability to highly-filled compounding formulations. This resin has a low level of monofunctional diluent ( HELOXY™ Modifier 62) to reduce viscosity, provide better wetting, yield higher filler acceptance and improve bubble release.  Because of these features, EPON Resin 8201 offers superior resistance to foaming under vacuum processing.


  • Low viscosity for easy pumping and handling
  • High resistance to filler settling
  • Low foaming

Sales Specification

Property Standard Value Unit Test Method
Weight per Epoxide 180 - 195 g/eq ASTM D1652

Typical Properties

Property Standard Value Unit Test Method
Color 1 max. Gardner ASTM D1544
Density at 25°C 9.7 lb/gal ASTM D1475
Viscosity at 25°C 50 - 65 P ASTM D445

1Vapor pressure of pure cresyl glycidyl ether.

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