Powerful foaming action keeps the formulation on the surface longer, making your job easier. Special formulation safely removes tough leaf and mildew stains from fabric and vinyl awnings. Also effective on mold stains, sap, bird droppings, bugs, and more. Non-bleaching formula won't discolor fabrics and surfaces. Nontoxic, nonflammable, and 100% biodegradable. 32 OUNCE