Protects and treats efflorescence and supports colors by impregnating all materials, both indoors and outdoors: terracotta, porous tiles, raw, polished, satin or natural porcelainstoneware, paving stones, curbs, slabs, gravel, natural stone, decorative slabs. Removes and prevents efflorescence due to humidity, and revives colors Warning: Dangerous. Respect the precautions of use.