Lithofin Resin-Ex special stripper gel removes all residues of epoxy-grout and similar blemishes such as resins, sealants, oil and grease deposits, paint (graffiti), plastic residues, etc. Suitable for ceramics and all rough and artificial stones. Not suitable for polished or honed calcerous stones (e.g marble, limestone, concrete stone, etc.). Lithofin Wax-Off maybe a more suitable product to use in these instances. Always test in an inconspicuous area prior to use.