KEY #200 is a highly chemical resistant, industrial grade, novolac epoxy grout for ceramic tile, brick pavers and stone. Key #200 is pre-packaged in kits containing resin, hardener and mineral fillers that produce a dense, uniform seal. Typical applications require superior resistance to thermal shock, chemicals. and heavy traffic found in the harsh environments of dairies, bakeries, meat packers, breweries, canneries, bottlers, distillers and pharmaceutical plants.