Please confirm your preference
Americas
Europe, Middle East, Africa
Asia Pacific

EPIKOTE™ Resin 238

Description

EPIKOTE Resin 238 is a low-medium viscosity epoxy resin consisting of a blend of a bisphenol A resin (produced from bisphenol A and epichlorohydrin) and a bisphenol F resin (produced from bisphenol F and epichlorohydrin). EPIKOTE Resin 238 contains no diluent. Its principal feature, as determined in laboratory tests is that it does not crystallise on storage. Furthermore, the addition of reactive diluents, e.g. in the production of formulated compositions, has no adverse effect on crystallisation resistance. EPIKOTE Resin 238 also provides good pigment wetting and good resistance to filler settling. (Note: EPIKOTE Resins 238 is one product out of a series. There are other resin blends of similar type; they offer the formulator a choice of viscosity).

Benefits

  • Low-medium viscosity without diluent
  • High resistance against crystallisation
  • Good pigment wetting
  • Imparts high mechanical performance

Sales Specification

Property Standard Value Unit Test Method
Color 100 Pt-Co ASTM D1209
Epoxy Group Content 5680 - 5930 mmol/kg SMS 2026
Viscosity at 25°C 4 - 5 Pa.s ASTM D445

Typical Properties

Property Standard Value Unit Test Method
Density at 25°C 1.17 kg/L ASTM D4052
Epoxy Equivalent 169 - 176 g/equivalent SMS 2026
Viscosity 20ºC 9.9 Pa.s ASTM D445
Viscosity 30°C 2.19 Pa.s ASTM D445
Viscosity 40°C 0.75 Pa.s ASTM D445
Viscosity 50°C 0.33 Pa.s ASTM D445
Viscosity 60°C 0.17 Pa.s ASTM D445