Coated limestone filler for resin systems

摘要

A limestone filler comprises particles of ground limestone having an average diameter of from 0.25 mu m to 44 mu m coated with benzoic acid in an amount of from 0.05 to 0.50 weight %. The coated limestone may be used as a filler for various systems, and reduces binder demand and increases the pot life of the resin-filler mixture.