Easily cleans lime, calcium and rust stains. Coats surfaces to effectively clean tough hard water build-up. Application: All-Purpose; Applicable Material: Hard Non-Porous Surfaces; Chemical Compound: Sulfamic Acid: Ethoxylated Aliphatic Amines. ~ Includes one bottle of lime, calcium and rust remover.REC87000. 87000. Lime-a-way Lime-a-way Lime, Calcium & Rust Remover, 28 Oz Bottle.