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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

EPI-REZ™ Resin 3522-W-60


EPI-REZ™ Resin 3522-W-60 is a nonionic, aqueous dispersion of a solid bisphenol A epoxy resin similar to EPON™ Resin 1002F, with an epoxide equivalent weight of 550 to 650 and a Durran’s melting point of 75 to 85 °C. EPI-REZ 3522-W-60 is supplied at a moderate viscosity and is mechanically stable. No organic solvents are present. EPI-REZ 3522-W-60 is completely water reducible, providing for a wide latitude in viscosity reduction. This dispersion is thixotropic; therefore, viscosity readings vary with the spindle speed of the viscometer (see Figure 1).

Sales Specification

Property Standard Value Unit Test Method
Particle Size 1.1 - 3.4 µm SRC - 1
pH 7 - 9 ASTM E70
Solids 58.5 - 60.5 % ASTM D1259
Viscosity 8000 - 18000 cP ASTM D2196
Weight per Epoxide 615 - 715 g/eq ASTM D1652

Typical Properties

Property Standard Value Unit Test Method
Pounds/Gallon 9.2 lbs/gal
Solvent              Water

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