Full Description Zep Calcium, Lime & Rust Stain Remover – Concentrate Liquid – 32 fl oz (1 quart) – 1 Each – Yellow General Information Manufacturer:Zep, Inc.Manufacturer Part Number:ZUCAL32Manufacturer Website Address:http://www.zepinc.comBrand Name:ZepProduct Name:Calcium, Lime & Rust Stain RemoverMarketing Information: Calcium, Lime and Rust Stain Remover breaks up deposits quickly, removing stains and buildup. This professional-grade, concentrated acidic solution removes rust stains, limescale, hard water stains and calcium deposits. Use on stucco, cement, porcelain, glass, fiberglass and brick, making it ideal for use on toilets, sinks, tubs, shower heads and glassware. Mix with water and apply to surfaces with a brush, sponge or cloth. Then rinse with clean water. Packaged Quantity:1 EachProduct Type:Multi-Surface Cleaner Product Information Cleaner Form:ConcentrateCleaner Type:LiquidCleaner Volume:32 fl oz (1 quart)Composition: Water Hydrochloric Acid Sulfamic Acid Glycolic Acid Citric Acid Quaternary Ammonium Compounds (Quats) Chloride Ethanolamine Isopropanol Acid Yellow 17 C9-11 Alcohols Ethoxylated Urea Hydrochloride Propargyl Alcohol Recommended Use: Calcium Deposit Remover Limescale Remover Rust Remover Hard Water Deposit Remover Mold Remover Mildew Remover Directions/Instructions: Pro Tips: The Calcium, Lime & Rust Stain Remover should be rinsed off quickly after applying, so keep a bucket of clean water handy for easy rinsing. Instructions: May etch older sinks, tubs and tiles. Test all surfaces in a hidden area before use. Directions: TO CLEAN TUBS, TOILET BOWLS AND SINKS: Mix 50/50 Calcium, Lime & Rust Stain Remover and warm water and apply to surfaces with brush, sponge or cloth. Rinse with clean water within 60 seconds. Tough stains may require a second application at full strength. TO CLEAN STUCCO, CEMENT AND BRICK: Mix 50/50 Calcium, Lime & Rust Stain Remover and warm water and apply to surfaces with brush, sponge or cloth. Rinse after 5-10 minutes. Tough stains may require a second application at full strength. Application/Usage: Multi Surface Multipurpose Physical Characteristics Product Color:YellowWeight (Approximate):2.45 lb Miscellaneous Recycled:NoAssembly Required:NoCountry of Origin:United States