Originally Posted by danorules

I have herculiner waiting to install when warmer weather comes, however all of the reviews and research I did on this said to prep like it is a new paint job. don't just rough up the paint with the scratch pad that is included. everyone said to sand the bed,at least past the clear coat, then rinse and rub down with acetone , then apply the liner. read the reviews on jc whitney under the herculiner section. I dont know if it helps, but it made sense and I am going to do it that way. a little extra effort up front may pay off in the long run.