Make unsightly rust a thing of the past with Star brite Rust Stain Remover. Specially formulated to end unsightly rust stains on RVs, boats, exterior home walls, or anywhere you want the elimination of and protection from rust, this simple spray cleaner brings an ideal concentration for fiberglass, metal, and painted surfaces. Fast and easy performance make Star brite Rust Stain Remover an industry leader in rust removal. Theres no rubbing or scrubbing required. Works great for rust drip stains, sprinkler rust deposits, corrosion stains on metal hardware, nuts, bolts, and other marine fittings. Unlike ordinary rust removers, this Star brite rust remover contains no harsh acids. Size: 22 oz. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Color: Rust. Type: Cleaning & Protectant.