Of course the guy that sells or uses Blitz will tell you that you can paint over it. Call the paint company that you plan to go with on the new paint and see what they said. I don't recommend it. I have seen this JD paint and was going to use it but noone knows if it lasts more than 3 years. I wouldn't trust it. Dry strip it down and much as possible and that way you never have to worry about it later.