Quote:
Originally Posted by fliptuner
lol, I have seats in the garage now.
Nice work Yoda but wouldn't it have been a lot less work to get it blasted first? I get the cost involved but it just comes out so much cleaner, ready for welding/fab/primer.
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No, in fact it would have been more of a hassle.
Undercoating is meant to repel material, blasting it takes forever if you aren't using sand, and the media isn't cheap.
Stripping most of it off, only leaving the residue, makes it tremendously easy to blast it clean with walnut media, not to mention that it takes a third of the media to complete.
Then why not use sand? Well, sand heats up the surface like nobody's business, meaning that the time it takes to strip the undercoating off would most likely warp the thin 22 guage metal. Sand is an antique in terms of blasting media, it simply causes too many problems unless it's on thick metal.
The only way we would have bothered treating the car first, is if we brought it to an acid dipping facility, but that is REALLY expensive compared to this method.