Simple Green Lime Scale Remover uses an organic salt formula to dissolve lime scale, mineral deposits, hard water stains, soap scum & oxidation. The non-abrasive formula won't strip protective finishes, cause discoloration, etch or damage sensitive surfaces like other harsh descalers. Application: Descaler / Cleaner; Applicable Material: Ceramic; Fiberglass; Plastic; Porcelain; Stainless Steel; Tile; Dirt Types: Calcium; Lime; Mineral Scale; Soap Scum; Scent: Wintergreen.