Sauna heater cleanser, suitable for heaters with a stainless steel surface. Instructions for use: For cleaning and removing limescale from the exterior surfaces of sauna heaters and other acid-resistant materials (such as glass, tile, porcelain). Use a sponge or cloth to spread the cleanser. Let sit for 10–15 min. Scrub the surface clean and rinse carefully. Repeat if necessary. Please note! Dampen the tile surfaces before cleaning. Do not use it together with chlorinated substances. Contains: Non-ionic surfactants , Sodium benzoate. pH apProx. 3.