I recall that this project farm channel also did a test of various pickup truck bed liner products you can apply yourself, if you have something you really want

I recall that this project farm channel also did a test of various pickup truck bed liner products you can apply yourself, if you have something you really want to protect. The results were quite different between them. I have seen some people cover the entire body panels of dedicated purpose off road 4x4 with bed liner or a similar product as a protective layer. they test all sorts of useful things like sds plus hammer drill bits and similar.