Using pure, granular sodium bicarbonate (baking soda) we remove paint, stains, and grease from many surfaces, such as steel, iron, aluminum, copper, brass, fiberglass, and many wood surfaces. Process is 100% water-soluble, biodegradable, and non-toxic. Applications include auto restoration, marine restoration, boat bottom paint, graffiti, rust stains, applied stains, trailers, frames, log homes, wood siding, concrete, brick, stone, and asphalt. Wil not damage rubber, chrome, or glass.