Remove rust stains quickly and easily Iron Out Rust Stain Remover Spray Gel. This special spray removes even heavy-duty stains on contact, changing them into an easily soluble state that rinses away cleanly. The household stain remover is designed for easy use in the most rust-prone areas, including showers, tubs, sinks, toilets and tiles. The robust formulation works on most surfaces, from chrome, porcelain, plastic and fiberglass to glass, colorfast fabrics and carpeting. Each spray bottle contains 24 oz.