The Pavetuf Rust Remover is a fast acting treatment for the removal of marks left on landscaping areas by metal garden furniture, fire pits and chimineas. It can also help pull out metal oxide deposits found naturally in some natural stone. Rust Remover is a non-corrosive specialist cleaner and is safe to use on all natural stone, sandstone, limestone, granite, marble, all types of concrete products, porcelain and brickwork.