Rust Away is a new generation, professional grade, rust, iron, bore and metal oxide cleaner and remover. and problem solver. Ideal for acid sensitive surfaces eg marble, limestone, travertine, bluestone, concrete, pavers, ceramic and porcelain tiles, terrazzo, encaustic tiles and more etc. For indoor, outdoor, domestic and commercial areas e.g. homes, hotels, motels, shopping centres, airports, resorts, restaurants, bars, apartments, aged care and child care centres etc.