KILLS 99.9% OF VIRUSES^ & BACTERIA We work hard so you don't have to! Effectively cleans tubs, showers, shower doors, basins, glazed ceramic tiles, sink, counters, stainless steel, chrome, fiberglass, vinyl, porcelain surfaces. For other surfaces, spot test an inconspicuous area. Not recommended for use on acrylic, brass, marble and other natural stone surfaces. CLEANS: Foaming action easily removes soap scum, hard water stains, and dirt.