The Ground Floor’s Acid Proof Magic “M” is acid proof with a matte finish. It is for concrete countertops, matte-finish limestone, tumbled marble, or any other stone where a high shine is not desired. It will slightly deepen, or enhance the color of the substrate but do it uniformly, the company said.

Acid Proof Magic “P” is acid proof with a polished finish, designed for marble tabletops or countertops, or any other polished natural stone where the high shine finish is desired. According to the company, “there is nothing flammable in here, so you don’t have to worry about application in someone’s home and a pilot light igniting it. With the air drying formula there is no special safety equipment required – just apply it and let it dry – that’s it.”