303 Aerospace Protectant 3038 303 is THE LEADER in UV Screening Technology. Protectant really is like SPF 40 Sunscreen ... For Your Stuff. Regular use gives 100% Prevention of UV caused slow-fade with regular use. No other protectant beautifies as intensely, protects as powerfully or lasts as long. The Worlds Most Manufacturer-Recommended Product: Because of its enduring cosmetic properties, the resistance of 303-treated surfaces to dust, soiling, and staining, its water repellency and unparalleled protective characteristics, manufacturers worldwide recommend 303 Aerospace Protectant. 303 Aerospace Protectant keeps UV-sensitive materials "like new" year after year. Use on Rubber:Tires, neoprene, latex, door and trunk seals, weather-stripping, EPDM rubber roofs, CV boots, waders, wet suits Vinyl: Convertible tops (and the clear vinyl windows), isinglass, marine seating, tonneau covers, car bras, covers, spa covers, pool covers. Inflatable boats: Hypalon, PVC and urethane blends