Use on clean, dry surfaces. For best results, use 303 Multi-Surface Cleaner. Place a drop cloth under the item to be treated to catch any overspray. Out of direct sun, spray product on surface and wipe COMPLETELY DRY with a clean, dry microfiber towel. Product can also be sprayed onto microfiber towel or applicator and then apply to surface. If streaking occurs, too much product has been used. Use a wet towel to remove excess, and immediately wipe completely dry. Note: This product does not air dry. Apply every 3-5 weeks for maximum UV protection. Safe and effective on a variety of surfaces such as vinyl, plastic, polyethylene, synthetic & natural rubber, PVC, epoxy and other composite resins, powder-coated metal, gel coat, fiberglass, stainless steel and more! Great for use on outdoor furniture, spa and pool covers, vinyl liners and pool inflatables, vinyl and leather furniture , RV EPDM rubber roofing, side-out seals, helmets, goggles. DO NOT use on unfinished leathers (such as suede), fabrics (canvas), flooring, clear plastic, guage panels or headlights.