I've been using this Protectant for 20+ years. I discovered that the 303 CLEANER actually prepares the surface for the Protectant yet many will not buy the cleaner and just try to get by with the Protectant. That is a huge mistake! The cleaner actually is a special type that softens and open the pores of the vinyl or plastic. It makes the material softer and more flexible. Once thoroughly cleaned apply the Protectant and the buff it off. Do that 2 times. the Protectant is used SPARINGLY so it will last much longer than the Cleaner. In fact, for me it last for 4-5 years. ANYTHING made from plastic or vinyl is great improved. Do not confuse this with Armor All. This stuff is superior. It's made by Gold Eagle in Chicago who also makes STABIL and HEET for gasoline. Both are incredible products. Gold Eagle doesn't play games... their products JUST WORK the best!