I did the inside of my 4runner from front to back with RHINO LINER. Two days later no problem. The real stuff is worth its weight in gold. I did the complete outside of the same 4runner using the roll on bed liner but I got a spray gun off ebay and used it. Having the spray gun smooths it out a lot better. If you will be in and out a lot get the rhino liner or line-x. It will last a lot longer.