Rustoleum NeverWet Outdoor Fabric Spray (2, Fabric Spray) Repels and protects from damage caused by water Crystal clear, silicone free formula will not change appearance or feel of items Polymers penetrate surface to form protective barrier around fabric fibers Use outdoor fabrics like canvas, polyester, cotton/poly blends (test in an inconspicuous area first) Wash new or dirty items prior to coating and allow product to dry for 24 hours before water exposure