I've never used the Durabak, but I have used Hurculiner. I would guess they are close in performance. The tip I have to offer is: Preparation. The whole process depends on the prep work before hand. You have to rough the surface (some people media-blast), and clean all (I mean ALL) of the grease, dirt, grit, grime out. Some "kits" may come with a de-greaser, but de-natured alcohol, or acetone (my preference) works well. Blow/suck/wipe all dust out and you're ready. If you skip or slack-off in any of the previous, you'll regret it when it peels down the road. As far as the process goes, tape off everything, "trim" with brush, the roll with the applicator. Just like painting a house. Some people use an under-body sprayer. I wish I had done this. Makes the finish look better, and less slick. Later