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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

HELOXY™ Modifier 65


HELOXY™ Modifier 65 is a commercial grade, glycidyl ether of para-tertiary butyl phenol. It is primarily used as a viscosity reducing modifier in epoxy systems and is particularly useful in epoxy applications requiring combinations of good electrical properties, low viscosity, low volatility and/or low odor levels.


  • Moderately effective viscosity reducer for higher molecular weight aromatic epoxy resins
  • Good electrical properties
  • Low volatility
  • Low odor

Sales Specification

Property Standard Value Unit Test Method
Color 1 Gardner ASTM D1544
Epichlorohydrin 10 mg/kg SMS 2445
Viscosity @ 25°C 20 - 30 cP ASTM D445
Weight per Epoxide 225 - 240 g/eq ASTM D1652

Typical Properties

Property Standard Value Unit Test Method
Density 8.4 - 8.6 lbs/gal

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