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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 863


EPON Resin 863 is a low viscosity, undiluted, difunctional epoxy resin produced from bisphenol-F (BPF) and epichlorohydrin and was specially developed to provide good resistance to crystallization.  When cross-linked or hardened with appropriate curing agents, very good mechanical, adhesive, chemical and electrical properties are obtained.


  • Low viscosity
  • Low color
  • Improved crystallization resistance relative to EPON Resin 862 and diluted BPA epoxy resins
  • Can be blended with EPON Resin 828 and other epoxy resins
  • Reacts with a full range of epoxy curatives
  • Good balance of mechanical, adhesive, and electrical properties
  • Good chemical resistance

Sales Specification

Property Standard Value Unit Test Method
Color 200 max. Pt-Co ASTM D1209
Viscosity at 25°C 25 - 45 P ASTM D445
Weight per Epoxide 165 - 174 g/eq ASTM D1652

Typical Properties

Property Standard Value Unit Test Method
Density at 25°C 9.9 lb/gal ASTM D1475

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