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EPON™ Resin 869A


EPON™ Resin 869A is a low viscosity epoxy resin produced from the reaction of Bisphenol F and epichlorohydrin.  It does not contain any diluent or modifier.  Like other Bisphenol F epoxy resins, it has improved chemical resistance and lower viscosity than standard Bisphenol A epoxy resins (e.g. EPON Resin 828). The lower resin viscosity provides good fiber or pigment wetting, and requires a lower level of reactive modifiers in formulations to achieve similar system viscosities and superior mechanical properties.


  • Lower resin viscosity without added diluent (compared to standard BPA-based epoxy resin)
  • Good hardness development and mechanical properties, especially when compared to diluent-modified resin blends
  • Improved resistance against crystallization, especially when combined with EPON Resin 828
  • Good chemical resistance
  • Good pigment wetting

Sales Specification

Property Standard Value Unit Test Method
Viscosity @ 25°C 5.0 - 7.0 Pa.s ASTM D445
Color 200 max. Pt-Co ASTM D1209
Weight per Epoxide 166 - 174 g/eq SMS 2026

Typical Properties

Property Standard Value Unit Test Method
Density @ 25°C 9.8 lb/gal ASTM D1475

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