... product is avirulent insipidity, no corrosion, no pollution, widely used in level, inside and outside metope, ground, toilet, basement, warehouse ... : this product is diluted after seven times directly spray brush in the concrete, plaster, stones, metope ceramic tile, marble, ... of cracks, with putty or epoxy resin processing, the deal with crack, with waterproof agent in surface directly painted with 1-2 ...