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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 3521-WY-53


EPI-REZ™ Resin 3521-WY-53 is a low viscosity, lower solids version of EPI-REZ Resin 3520- WY-55. EPI-REZ Resin 3521-WY-53 is a 53 percent solids dispersion of an EPON™ Resin 1001F in water and 2-propoxyethanol. This resin is designed for use in waterborne, two package coatings. When combined with suitable curing agents, EPI-REZ 3521-WY-53 offers the potential for high performance aqueous systems.


  • Low Viscosity
  • High Gloss
  • Same molecular weight epoxy resins as standard solvent-borne epoxy systems
  • Excellent Stability
    •       Insensitive to pH
    •       Accepts variety of pigments
    •       Non-settling or creaming on storage
    •       Mechanically stable
  • Compatible with various solvents and curing agents
  • Negligible solvent odor

Sales Specification

Property Standard Value Unit Test Method
Fineness 5.0 min Hegman ASTM D-1210
Particle Size 0.2 - 0.5 µm SRC 00033
Solids 52 - 55 ASTM D1259
Viscosity 1000 - 8000 cP ASTM D2196
Weight per Epoxide 485 - 555 g/eq ASTM D1652

Typical Properties

Property Standard Value Unit Test Method
Appearance Milky
Flash Point Setaflash 200 - 0 °F
Pounds/Gallon Solution 9.00 lbs/gal
Pounds/Gallon Solids 9.57 lbs/gal

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