I was going to wait about five race and or practice days to open up a thread for this. I applied the rust oleum equivalent it flex seal on my pro line sct new body. So far this stuff is great. The body has held up great. I applied a heavy coat in the front and rear and a light code in the middle. I also resurrected a beat up body with shoe goo and dry wall tape and the rust oleum product. It does add weight, but I don't care.... I hate drilling holes and cutting bodies. My next body will not receive paint...only the rubber in a can product.....so far so good.... On one note though...if you have a crack already I think drywall tape and shoe goo will be better.... But the rubber in a can stuff appears to be a great preventive tool...time will tell.