What is in the chemical used to seal granite?



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    Granite sealers usually are composed of a resin, that penetrates into the pores of the stone, and a solvent that carries the resin throughout the stone and then evaporates.  Some of the chemicals used as solvents are trimethylbenzene, propylbenzene, mesitlyne, naphtha, isobutyl methacrylate, n-Butyl acetate, and PFOA.  Some of these chemicals are considered safe enough to put in food, while others are considered extremely toxic.  At any rate, there seems to be a great deal of debate as to whether sealing granite is really necessary or even beneficial.

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