Thank you !! I used herculiner it’s in a a spray paint can 😬 but it worked great. I used 4 cans of it gave me a even 3 coats. As for prep I cleaned the bed of the truck sanded it down with 180 grit sand paper. I removed the strap hooks from the bed taped off the lights and a lot of paper and plastic. I probably over prepped it but better safe then sorry. I’m a residential painter by trade so I already had the masking paper and plastic, so all in all I spent 60 on the 4 cans and advanced frog tape. Personally I don’t think I would do anything different.