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EPIKOTE™ Resin 828XA

Description

EPIKOTE Resin 828XA is a medium viscosity epoxy resin produced from bisphenol A and epichlorohydrin. It contains no diluent. EPIKOTE 828XA provides good pigment wetting, good resistance to filler settling and a high level of mechanical and chemical resistance properties. As judged by laboratory tests, EPIKOTE 828XA is considered to have a good resistance to crystallisation on storage. In this respect EPIKOTE 828XA is superior to EPIKOTE Resin 827, 828LV or 828. However, the addition of reactive diluents e.g. in the production of formulated compositions, tends to reduce the crystallisation resistance.

Benefits

  • Improved crystallisation resistance
  • Good pigment wetting
  • Imparts high mechanical performance
  • Imparts good chemical resistance
  • Improved crystallisation resistance
  • Good pigment wetting
  • Imparts high mechanical performance
  • Imparts good chemical resistance

Sales Specification

Property Standard Value Unit Test Method
Colour 200 MAX Pt-Co ASTM D1209
Epoxy Group Content 5100 - 5400 mmol/kg SMS 2026
Viscosity at 25°C 10 - 14 Pa.s* ASTM D445

* 1 Pa.s = 10 Poise

Typical Properties

Property Standard Value Unit Test Method
Density at 25°C 1.16 kg/L ASTM D4052
Epoxy Molar Mass 185 - 195 g/equivalent* SMS 2026
Flash Point (PMCC) >150 °C ASTM D93
Viscosity 20°C 40 Pa.s
Viscosity 30°C 7.2 Pa.s
Viscosity 40°C 2.0 Pa.s
Viscosity 50°C 0.68 Pa.s
Viscosity 60°C 0.32 Pa.s
Viscosity 70°C 0.17 Pa.s

*number of grams of resin containing 1 equivalent of epoxide (Weight per equivalent, WPE, is an alternative term