Color & Fabric Safe! Removes mold, mildew, algae stain, bird droppings, spider droppings, tannin (leaf) stain, tree sap, tough dirt, grease and oil, some food and drink stains, blood stains and more. Recommended for use on awnings, tents, boat covers, canvas, cushions, carpeting, umbrellas, camping gear, inflatables, fabrics, vinyl, plastic and fiberglass. It is non-chlorine and biodegradable.