Zep Concentrated Calcium, Lime & Rust Stain Remover is a powerful, professional-grade rust remover and limescale cleaner designed to tackle tough deposits. This rust dissolver effectively breaks up and removes stubborn calcium, lime scale, and rust stains. Perfect for bathrooms and kitchens, it works on porcelain tubs, sinks, toilets, glass, and fiberglass.
Instructions
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.
Pro-Tip: The Calcium, Lime & Rust Stain Remover should be rinsed off quickly after applying, so keep a Pail of clean water handy for easy rinsing.