303 is THE LEADER in UV Screening Technology. 303 Aerospace 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 World's 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.
 

Uses:
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. Gelcoat fiberglass: Boats, RV's, snowmobiles, jet ski's.
Plastics, acrylics, polycarbonates: Lexan® and acrylic panels, windows, , windshields, covers.
Carbon-fiber/resin composites: Fishing rods, "nude" bike frames.
Finished leather: Upholstery, motorcycle leather, trim, tack, fine apparel.
Pool & Patio: Plastic furniture (not fabric), pool inflatables, slides, covers.
Sailcloth: Dacron® and monofilm.