Proper primer for bedliner
I recently tried using Rustoleum's Truck bed liner. The surface was prepped really good but apparently I used the wrong primer as it blistered/bubbled once I applied the bed liner. A friend found that I used enamel primer and said that was the problem. He said since I used a wire wheel on my grinder and took it down to bare metal again that I wouldn't need a primer for this stuff since the metal is really scratched (the liner would grip). The directions say to prime but gives no indication of what type (hence my misfortune of using the wrong type). I like the bed liner and will use it again as it looks and feels great over the areas with the original paint on it, I just don't want to do this a 3rd time.