The expert hard water stain remover easily cleans lime, calcium and rust stains. Coats surfaces to effectively clean tough hard water build-up. Removes the toughest limescale in seconds without scrubbing! Good for use on sinks and fixtures, tub and tile, and shower and glass. Application: Descaler/Cleaner; Applicable Material: Ceramics; Enamel; Fiberglass; Glass; Laminates; Metal; Plaster; Plastic; Vinyl; Chemical Compound: Sulfamic Acid: Ethoxylated Aliphatic Amines; Dirt Types: Calcium; Lime; Mineral Scale; Rust.