First, I LOVE this paint.. Zerorust.. It thins with zylene, like a bed liner type material, so my thought on it is that it is sort of like a bed liner without the rubberization or something like it.. It leaves a hard plastic coating that is very tough to penetrate, sort of like a powdercoating almost except that you stray it on. Also again when you do the math, it is super cheap, $58 a gallon but all of this paint (three coats on the axles, two on the links, and quite a bit on the frame where there are two coats, all less than a 1/2 gallon.. cheaper than rattle cans!