spray on bedliner stuff

[ak_petey]

So on my 2001 dodge there is some rust at the bottom part of the door. not much but something I am probably going to take a wire wheel to and clean it up. To cover it up I was thinking of using the spray on undercoating you can buy from fred meyer and doing a short line across the rocker panels or just some grey or flat black paint.
I know the auto trim bedliner stuff is tough, but I dont want to spend too much money on a thick professional spray on liner because it will probably just get rubbed off on the trail or on trees. the spray stuff can be used to touch it up if needed.
thoughts?

[Dr Brian]

I used Duplicolor spray-on bed liner from Napa for my control arms. Takes direct hits to groove it. Doesn't flake or peal off due to gravel spray. Easy to touch up and get more. It is not as pretty as the fancy Auto trim stuff (color or texture) and we used 3 coats.

[ak_petey]

that is some thick coating