... blemishes on metal and produces a fine, brushed satin finish. Works like a pencil eraser to remove most types of stains without ... it's not compatible with acrylic spa surfaces.Features:Works on Rust, algae, scum lines, leaf marks, metal marks & more Helps ... sun-faded areas and dingy vinyl to new. Works on surfaces without scratching Restores surfaces to like newCan be attached to your ...