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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

EPI-REZ™ Resin 3547-WY-57


EPI-REZ™ Resin 3547-WY-57 is a nonionic dispersion of a high molecular weight epoxy resin in water and 2-propoxyethanol (EGMPE).  It was developed to be similar to EPI-REZ Resin 3540-WY-55 and to be compositionally compliant with many regulations for incidental food contact applications.


  • Moderate viscosity for ease of handling
  • Excellent particle size stability
  • Good discoloration resistance at high temperatures
  • May be formulated for low VOC coatings
  • Can be cured through epoxide and hydroxyl functional groups

Sales Specification

Property Standard Value Unit Test Method
Epoxide Equivalent Weight 1600 - 2000 g/eq ASTM D1652
Epoxy Group Content 500 - 625 mmol/kg ASTM D1652
Particle Size Coulter Volume Mean 0.4 - 1.5 µm Internal
Solids Content 56 - 58 %m ASTM D1259
Viscosity at 25°C, Brookfield 10000 cP ASTM D1545

Typical Properties

Property Standard Value Unit Test Method
Appearance Opaque white liquid Visual
Density at 25°C 9 lbs/gal ASTM D1475
Density 1080 kg/m³ ASTM D1475
Organic Cosolvent EGMPE
pH 6 - 9 ASTM E70
Solvent Water

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