StoneGuard® is a clear protective film available in Gloss or Satin, designed specifically to eliminate staining and etching for porous and sensitive stone surfaces such as Marble, Quartzite, Onyx, & more. StoneGuard® is patented & incorporates heat and chemical resistant technologies. The film will protect stone counters from oils, juices, sauces, acids, alkaline, and harsh household chemicals that can leave permanent stains or etchings on your stone surfaces.