Liquid acid pH non-corrosive, free of acid vapors, for professional use to descale pollutants, salts and cement residues, in non-shining coating. If the manufacturer specifies it in its scope to: − Granite - Porcelain - Stoneware - Ceramic It does not corrode metallic or aluminum surfaces. Although it corresponds to green acid technology and does not generate burns like conventional acids, it requires the use of personal protection elements to avoid dryness or irritation.