I've not used the "Herculiner" brand material, but have used the "Rust-O-Leum" brand material to do this very thing in five trucks over the years. I have had good results from using this DIY kit. The reall key to a good job, IMO, is preparation. Decide exactly which area you want to cover, I threw the "scratch pad" that came with the kit away and used 60 grit emery cloth to scratch up the finished painted surface. I wiped it multiple times with lacquer thinner to assure a good cleaning. Tape off where you want the lines to be, use paper to mask over anything you DO NOT want any of this stuff on--it's really hard to remove. All of my trucks were crew-cabs with short beds and the kit was enough to do the bed thoroughly. And--sunlight will cause this to fade over some six months time--Period! I just went back with gloss black from a quart can and brushed on a nice, shiny, new finish.
