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Old 06-24-2025, 10:06 PM
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Thanks everyone
Wanted to post a small update with a few pictures using my straight edge to show some of the warpage.
I spoke to the blaster today. He was adamant he’s done a bunch of cars using the same media(60 grit aluminum oxide) at the same pressure(80psi) and has never had an issue. He blamed the heat from the day and that sitting after allowed it to cool and distort. He’s going to stop over this weekend to take a look at the car and see if we can come to an agreeable solution.

At the end of the day I can’t really blame him for some of the warpage. The doors had a little work in them already, along with the quarters. So I can’t say for certain what was there before vs what was caused by the blaster. I spent a little time trying to shrink some of the metal on the trunklid as it’s a good test piece before I try to tackle the roof. Honestly the roof is far and away the worst and what bums me out the most.

I’m going to try and get a coat of epoxy primer on the car in the next 2 weekends if we get a nice low humidity day. Otherwise the only thing I can do is soldier on and try to make the best out of it.
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Old 06-24-2025, 10:52 PM
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Good to read you are looking at this with a slightly more positive attitude..

80 psi on large panels is way too much in my world. I stay at 45 psi with play sand, which leaves a texture of about 80 grit. Your surfaces appear to have a lot rougher texture than any I do, like the oxide is quite aggressive. Yes, the lower pressure and sand takes longer, but I can do this without warping. He is in a hurry to make profit...
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