TroyScherer said:
What about using some of the roll on Truck Bed Coating like Dupli-Color Bed Armor. That would guarantee protections and you don't have to worry about over spray. I have been kicking this idea around for little while now.
If you go that route, make sure to do whatever's necessary to ensure good adhesion.
Some of the reasons I generally prefer "rustproofing" type undercoatings instead:
-minimal prep required (can even apply over minor surface rust, works incredibly well IME)
-minimal overspray and you can also brush it on (and it cleans up easily if you get it on the wrong places)
-application goes pretty quick and easy and even a half-@$$ed job works out quite well
-doesn't flake/peel off later
-doesn't trap water in places where it gets compromised (chips/etc.)
-easy to touch up (consider the type of frame scraping that precipitated this whole discussion, that'll probably happen again)
-does a *tiny* bit of migrating/"creeping" to get into tight spots and also does (minimal, but hey..) self-healing
I do understand why the bedliner/rubberized/etc. approaches have their appeal, but for a practical approach on a driver I'll go with Eastwood's Black Heavy Duty Anti-Rust every time.