Proback

Transparent impregnating water-based product to be applied beneath and the 4 sides of stone tiles for prevention against efflorescence, salts and discoloration. Can be used on natural stones, marble, granite, artificial stones, terra-cotta and any porous tiles. The product impregnates deep into the surface and it does not form any film on the surface; therefore the surface remains breathable and suitable for cementitious adhesives and colored grouts to be applied. The product does not contain any harmful substances to the environment ; exempt from VOC regulation.