General Fillers
Finely powdered stone fillers for polyester and Epoxy resin. Fillers are used for a variety of reasons: for effect, as with metal fillers, slate or synthetic onyx; to improve opacity when using pigments; or to bulk out the resin for economy and to reduce heat (exotherm) when casting large solid pieces. Other useful properties, such as improved hardness, scratch resistance and thixotropic qualities, can also be achieved by adding fillers.