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On January 31, 2021, 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 WF


HELOXYTM Modifier WF is an aliphatic diepoxide that imparts flexibility.

The modifier is primarily used as a reactive diluent or viscosity reducer for liquid epoxy resins.


  • Compatible with liquid epoxy resins
  • Non-offensive odor
  • Excellent water resistance
  • Imparts high flexibility and impact resistance to epoxy systems

Sales Specification

Property Standard Value Unit Test Method
Color ISO 4630 5 max Gardner
Epoxy Number 10.3 - 11.3 % DIN 16945
Viscosity at 25°C 50 - 90 mPa·s DIN 53015

Typical Properties

Property Standard Value Unit Test Method
Delivery Form liquid
Density at 20°C 0.99 - 1.03 kg/L ISO 2811
Epoxy Equivalent 380 - 420 g/equivalent DIN 16945
Hydrolyzable Chlorine Content ISO 21627-2 0.5 %
Refractive Index at 25°C 1.453 - 1.457 DIN 51423

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