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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

EPON™ Resin 58901


EPON™ Resin 58901 is an elastomer modified epoxy functional adduct formed from the reaction of EPON Resin 828 and a carboxylated butadiene-acrylonitrile elastomer. Elastomer content is approximately 5% by weight. The primary use of EPON 58901 is in the modification of conventional epoxy systems to increase flexibility and impart tack to provide early green strength to adhesive systems.


  • Broad compatibility with conventional bisphenol A epoxies
  • High viscosity
  • Imparts tack and early green strength into adhesive systems

Sales Specification

Property Standard Value Unit Test Method
Acidity as KOH 0.2 max. mg/g ASTM D1639
Color 5 max. Gardner ASTM D1544
Epoxide Equivalent Weight 195 - 210 g/eq ASTM D1652
Solids 99.0 min. % wt. ASTM D1259
Viscosity at 25°C 1000 - 5000 P ASTM D2196

Typical Properties

Property Standard Value Unit Test Method
Density at 25°C 9.3 lb/gal
Specific gravity 1.12 g/mL

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