ZEP Commercial Calcium, Lime and Rust Stain Remover is a concentrated acid formula that instantly removes calcium deposits, lime scale, and rust stain. This concentrated formula can be used on stucco, cement, porcelain, glass, and fiberglass to remove stains and discoloration. ZEP Commercial Calcium, lime and Rust Stain Remover can be used to clean tubs, sinks, toilets, and brick removing even the toughest stains. This cleaner is not for use on wood, fabric, natural stone, aluminum, brass, chrome, or painted surfaces.
- Mix with warm water to dilute
- Apply with brush, sponge, or cloth
- Test surface before use
- Rinse after 5-10 minutes