Effortlessly eliminate rust stains from patios, paths, walls, and indoor surfaces with this fast-acting, non-acidic Rust Stain Remover, specially formulated for both exterior and interior use.  Unlike harsh acidic cleaners that risk damaging delicate materials, this solution is safe for polished marble, granite, concrete, porcelain, and other natural and artificial stones. From corten steel rust, to rusty metal furniture marks and irrigation system leaks, this product targets surface rust stains at the source, visibly reacting with the contaminant in minutes to lift and neutralise without harming your surfaces. Ideal For Use On:Natural Stone: Marble (polished/unpolished), Granite, Travertine, Limestone, York Stone, Indian Sandstone (except Kandla Grey)Artificial Stone: Concrete, Split Face Stone Cladding, Porcelain Tiles, TerracottaBrick, Masonry, and Cement Surfaces Key Features & Benefits:Fast-Acting Formula: Reacts visibly within minutes by turning purple on contact w