Quickly Removes Mold & Mildew Stains On Contact Without Heavy Scrubbing; Easy To Use - Spray, Wait Until The Stain Disappears, Then Rinse10Stain Remover + Cleaner: High-Alkaline, Triple-Action Formula Contains; Buffered-Bleach To Remove Mold & Mildew Stains; Chelating Agents To Lift Ground-In Dirt; Surfactants To Cut Grease & Grime10Works On; Awnings, Fiberglass, Wood, Concrete, Drywall, Siding, Tile & Grout, Gutters, Roofs, Vinyl Upholstery, Most Outdoor Acrylic Fabrics, And More *(Test Fabric For Colorfastness Before Use)10Professional-Strength, Concentrated Formula For Boats, Homes, Rvs, And Commercial Use10Star Brite Products Are Proudly Made In The Usa Since 1973