Old truck - undercoating?
Another good use for do-it-yourself undercoating is to hide the totally rusty under area of your car when trying to sell it on craigslist. The Rust-oleum rubberized undercoating will stick pretty good to totally rusted orange metal and give it a fresh, rich, black rubberized coating that should definitely help sell your old rusty clunker.
Hide the rust ...... sell the car ......
..... it's never too late to undercoat!
And, for about three dollars there's a large clamp-on handle that gets attached to the top of the can that makes the spray job go much-o better-o.