... polished tiles), timberGranite, marble, sand stone (cautious for black stone)Granite, marble, sand stone, microcrystal stone, ceramic tiles, polished tiles and ... the stone Acidic formula will bleach the stone, then (green, black or grey) pigments must be addedNot change existing ... machine, polishing padCorrosionStrong alkali de-waxing agent dissolves stone, mica and metal ionsSteel wire will be heated ...