Well, I've just spent an hour straight with a 4000psi jetwasher removing the old waxy oil and crud from my 03 chassis, and I think this is one of the only ways to do so. Tried doing it with an angle grinder wire brush and it just smears. So after getting soaked head to tow and coming out black myself, I thought, why the hell do people use this sh*t.
The only thing I see it doing, is protecting it for a certain amount of time, and then the chassis just rusts underneath it and it eventually begins to peal off.
I would much prefer a good quality rust inhibiting primer, chassis paint and maybe a top coat of stone chip, which is what I will do now the "majority" of the old waxy oil has been removed..
Gave me a good look at the chassis, needs a small weld where its split on the join up the rear, but nothing major and not in too bad shape.
..Never again
