This product is a highly usefull for rapid removal of acid-soluble debris, Hard water deposition, Alkaline films and residues may be effectively removed from stainless steel, porcelain, ceramic tile, grout, sinks, bathtubs, shower stalls, windows, and cooking equipment with regular use of this product, thereby eliminating the need for expensive, time-consuming procedures. In janitorial and industrial applications, this product is ideal for removal of oxides and carbonates which accumulate on metallic surfaces causing a dull, filmy appearance. Dilutes with water up to 1 : 30 depending on application.