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Additives & Fillers improve the performance of resin in certain applications and can enhance the surface cosmetics of finished parts.

Polyester resin additives can enhance fire-retardancy, reduce resin shrinkage, improve thermal stability and increase the weatherability of composites products. Fillers may also be added to resin to improve performance and enhance surface cosmetics while reducing cost.

Fillers and additives include fumed silica, alumina trihydrate, calcium carbonate, stearates, and glass, ceramic, or thermoplastic microspheres.

Also available are lightweight, solid surface, granite fillers and cultured marble fillers that enhance that are integral to manufacturing cast polymer products.

Additives & Fillers used in bathroom
Additives in kitchen applications
Additives & Fillers in counter top


  • ACS International, Inc.
  • Allied Custom Gypsum
  • Evonik
  • Imerys Performance Materials
  • INEOS Titanium
  • OMYA, Inc.
  • Performance Minerals
  • Potters Industries, Inc.
  • Safas Corporation
  • Valtris Stearates

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