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EPON™ Resin SU-8


EPON™ Resin SU-8 is a polymeric solid epoxy novolac resin possessing an average epoxide group functionality around eight. EPON SU-8 is compatible with bisphenol A-based epoxy resins, imparting improved high temperature strength, thermal stability, reactivity and chemical resistance. Prepreg laminates and graphite or boron reinforced composites with EPON SU-8 attain the maximum strength retention and thermal stability possible for an epoxy matrix system at elevated temperatures. Epoxy molding powders prepared with EPON SU-8 are characterized by an outstanding combination of flow stability and short press cycles.


  • Long shelf life
  • Micropulverized at ambient temperatures
  • Rapid development of hot hardness
  • Maximum elevated temperature strength retention
  • Improved tack qualities and lateral cohesiveness of unidirectional tapes

Sales Specification

Property Standard Value Unit Test Method
Color 6 max. Gardner ASTM D1544
Epoxide Equivalent Weight 195 - 230 g/eq ASTM D1652
Viscosity at 130°C 10 - 60 P ASTM D2196

1 40% weight in Butyl Carbitol

Typical Properties

Property Standard Value Unit Test Method
Density at 25°C 10.0 lb/gal ASTM D1475
Flash Point >200 °F ASTM D93
Melting Point 82 °C ASTM D3104

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