Crystal Shield II surface protector will actually bonds to the surface molecular structure to seal the pores of glass, porcelain, ceramic, plastics, polished metals, fiberglass and marble to make the surface water, soil and stain resistant. The clear coating holds up to hot water and guards against the adhesion and build-up of dirt, grime, mold, mildew, rust and mineral deposits. Crystal Shield II surface protector permits the practice of preventive maintenance, reducing costly cleaning, repairs and replacement. Simply wipe on and polish off. Clean with Delta Repellent Wash and a MiroFiber cloth to keep the surface easy clean forever. There will never be a need for acidic or abrasive cleaning chemicals.