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Old 08-29-2005, 12:41 PM
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What media for blasting aluminum?

Hi All,

I'm about ready to clean up my Corvette front suspension pieces. I've degreased them and now they are all "splotchy" looking, so I'd like to blast them to a uniform finish, then clear coat them. I'm thinking glass beads or walnut shells... Any ideas?

Russ

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Old 08-29-2005, 01:14 PM
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I dont know on media. How about trying aluminum cleaner (acid) if you are just looking for a uniform finish.

Rich
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Old 08-29-2005, 01:30 PM
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i would use glass beads in a blast cabnet to clean aluminum.
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Old 08-31-2005, 04:52 PM
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Quote:
Originally Posted by shine
i would use glass beads in a blast cabnet to clean aluminum.
Thanks, I'll try it!

Russ
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Old 08-31-2005, 07:28 PM
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Yep, glass beads, but if you do not have a cabinet I have used crushed walnut shells on some Muncie cases and they looked fine. I bought a 50 pound bag of crushed walnut shells from a blasting supply house in Beaumont. I think I paid less than $20 for it.

Vince
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Old 09-17-2005, 09:07 PM
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Vince,

Does the finish look polished? My blast cabinet is almost finished and I've found glass beads, but only in a "large" size (# 8), so I'm now looking for shells...

Russ
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Old 09-18-2005, 07:06 PM
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No the finsh does not look polished, kinda like brushed aluminum, a dull finish. It is not as shiney as a sand blasted piece, but the crushed walnut shells are easier on the aluminum surface.


Vince
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Old 09-19-2005, 07:54 PM
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Let me rephrase this: If you were doing a Corvette (aluminum) front end, how would you clean it up and make it presentable?

Russ
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Old 09-19-2005, 08:04 PM
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Personally I think the crushed walnut shells would give you a natural aluminum look. I have seen Muncie cases that have been blasted with sand and although they are very clean they do not look right..too shiney IMO.

Vince
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Old 09-20-2005, 04:59 AM
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glass beads are your best product for aluminum. next would be star blast by 3m. walnut shells deposit oil on the metal when you blast with them. contact a local composite company for a demo . you can take a piece with you and test the product in their blast cabnet. star blast is cheap.
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