I used Herculiner in a Jeep a few years ago and had it flake off in spots. I followed their instructions to the letter. It may work, but be warned that it may not. Herculiner is pretty thick and flexible, so I just taped up the back side of the seams and let it fill those in by itself, no caulk. It pretty much self levels.


Paint & Body Shop moderator
A lone amateur built the Ark. A large group of professionals built the Titanic.