FILCO® 322HP stands as a urethanized epoxy resin expertly formulated within a non-ionic water emulsion, specifically serving as a film-former in glass fiber sizings. Presented in a liquid form with a milky appearance, it possesses notable material traits, including excellent non-yellowing properties, robust thermal stability, and high hardness. Its applications span across various composite end-uses, such as Bulk Molding Compounds (BMC) and Sheet Molding Compounds (SMC).

Functions: Film Former

Chemical Family: Epoxy & Epoxy Derivatives

Technical Data Sheet

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Identification & Functionality

Chemical Family
Composite Materials Functions
Product Families

Features & Benefits

Materials Features
Characteristics of Film
  • Clear, hard
  • Glass transition temperature Tg approx. 30°C
  • High thermal stability
  • Not yellowing at high temperature
  • Medium-low solubility in styrene

Applications & Uses

Compatible Reinforcements
Composites End Use
Processing Information

FILCO® 322HP is suggested as film former for glass fiber sizes for:

  • Roving for SMC
  • Roving for BMC


Physical Form
Milky liquid
Typical Properties
ValueUnitsTest Method / Conditions
Viscosity (at 25°C, #4, 20rpm)500 - 6000mPa.sMA143LFE
Solid Content58 - 62%MA145LFE
pH5 - 8.5-MA148LFE
Epoxy Equivalent Weight (on dry resin)520 - 600gMA149LFE
Particle Size Distribution
ValueUnitsTest Method / Conditions
Average Particle Size400 - 1500nmMA147LFE

Packaging & Availability

Regional Availability
  • Canada
  • Mexico
  • USA

Storage & Handling

Shelf Life
12 months
Storage and Shelf Life Conditions

FILCO® 322HP should be stored in closed containers away from direct sun rays, at temperature between +5 and +30°C. In these conditions maximum suggested storage time is 6 months from production, in the original package. After that date product must be rechecked. Prevent from freezing. Thoroughly homogenize the product before use