Gel stain remover specifically formulated to remove the toughest stains, such as rust, immediately and easily. You can use it on concrete, porphyry, metals, and a variety of stone surfaces, including marble, granite, limestone, slate, ceramic, terracotta, terrazzo, slate, porcelain, and quartz agglomerate such as Silestone®.
It is a very safe, acid-free rust stain remover that will not damage the shine or polish of the marble or surface.