GLITZ is specially formulated to remove calcium and other deposits due to water. Apply undiluted to the surface and allow GLITZ to work for a few minutes (Longer if calcium deposits are heavy) and wash off with water. A used toothbrush can be used gently to scrub the old and hardened scales. Whitish appearance indicates the presence of scaling.
NOTE: - Does not repair or enhance the finish of already corroded / damaged surfaces. Wear protective gloves