Hot Spot Black Stove & Grate Polish is a water based polish that covers minor scratches and rust. Leaving a lustrous black finish that does not rub off when dry. Microscopic colour pigments in the polish bond with the stove surface to hide minor blemishes and improve appearance. Suitable for grates, stoves and other cast iron items. Using a damp cloth, apply sparingly a thin coat of polish. Allow to dry for a few seconds, then polish off with a soft cloth or brush until no residue of polish is visible. Any excess of product may generate fumes once heated.