3M™ marine mildew stain remover clean sand eliminates mildew from most marine surfaces. Our easy to spray powerful formula cuts into virtually any layer of mildew that grows on a boat. After applying, simply wipe with a cloth to reveal a fresh, clean surface free of unsightly mildew and mold. Once the surface is clean, follow up with 3M™ marine mildew block to help prevent it from recurring. 3M™ 7000120130, 16.9 fl-oz Container, Bottle Container, Liquid Form, Clear, Chlorine/Slight Citrus Odor/Scent, 12 to 13 pH, Applicable Materials: Plastic, Composition: Water, Sodium Hydroxide, Dimethyltetradecylamine Oxide, Glycine, N-Methyl-, N-Coco Acyl Derivs., Sodium Salts, Chlorine, Sodium Hypochlorite, 0.027 VOC, 1.03 to 1.055 Specific Gravity