A MUST FOR EVERY BOATER In a class by itself! Developed to remove mildew stains and prevent their return. This world renown formula can be applied to most colored fabrics including furniture, sails, life jackets, clothes, carpeting, etc. Will not remove color or break down stitching as with chlorine based products. PLEASANT ODOR allows use in close quarters without harmful fumes. Will also work effectively on hard fiberglass or tile surfaces. After cleaning, a light coating of Mildew Stain Away helps to keep surface mildew free.