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Old 11-11-2004, 03:42 PM
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Sand blasting '66 GTO.... acceptable?

my current restoration that im working on is a 66 gto. i have a pressurized sand blaster and ive been blasting the back sides of the trunk hood doors etc. my question is if it would be acceptale on the outter portions. now i know u cant stay in one spot for too long or it will warp easier but should i stay away all together or would i be alright? im quite experienced with using the blaster and body work but just havent had the "balls" to sandblast the outside. but from what i know the metal is thick and while doing the back side of the trunk i touched the metal and it was still cool wasnt even warm. What does everyone suggest?

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Old 11-11-2004, 04:05 PM
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I just blasted a 69 black judge, and 4 other GTO's before that one. Never have had a problem, I have a 125lb pressurized blaster. Just keep moving and I find myself going back in some places a second time to get the factory lacquer primer off in spots.
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Old 11-11-2004, 08:26 PM
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I had a '66 Mustang commercially blasted once - the big, high powered kind, and it didn't faze it at all. I think that before mid to late 70's, they still used a bit of real steel in the bodies.
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Old 11-11-2004, 08:51 PM
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I have to tell you, I have seen cars totally distroyed by sand blasting.
I am not talking about "darn I caused a mess I have to fix". I am talking "#&^%@ it is totally RUINED and has to be thrown away, I have distroyed a perfectly good car"
Unlike popular belief it is not caused by heat but "compressive mechanism - localized molecular packing".

Each grain of sand acts as a tiny hammer putting a microscopic "dent" in the metal. It stretches the outer layer of metal larger. What you end up with is a warped panel that comes out toward the blaster nozzle.

I have seen this distructon done by pros as well as amatures.

It can be done of course as Barry and Julmer have said, but it can DISTROY as well. MUCH caution should be used.
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