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Old 01-28-2005, 12:02 PM   #1 (permalink)
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Sandblasting and clearcoating

has any one here sandblasted their painted wheels back to the raw aluminium colour then clear coated it? I'm asking because I want to blast my white wheels back to the bare metal, but I don't know how successful this venture would be.

Any tips, ideas, sandblasting machines at home that I can come use?
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Old 01-28-2005, 12:08 PM   #2 (permalink)
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Well here in the states there's a place called U.S Rentals, well in Fresno and Madera. I don't know how spread out they are but u can rent and type of machinery equipment. I don't know if u guys have anything similar over there but u can check into it. Not gonna paint them a diff. color?
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Old 01-28-2005, 12:24 PM   #3 (permalink)
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I dunno if i wanna go and rent a sand blaster because I don't know how long it would take to strip all the paint off.

I actually like the look of raw aluminium, so unless it looks all marbley and nasty, I'm gonna try to keep it natural. Everyone has bronze and gun metal wheels now... silver is probably more unique!
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Old 01-28-2005, 12:33 PM   #4 (permalink)
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It shouldn't take but a half hour. There's really no other way for your project, except sanding . That could take forever and a day to do. Unless u can find a place that does sandblasting for certian things, u might try that.
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Old 01-28-2005, 12:46 PM   #5 (permalink)
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You can use a product called Aircraft Stripper (a strong paint stripper). Many supra owners used to use it to strip ours to bare metal before polishing. Apparently that stuff, a stiff plastic brush and a hose would take it down to metal in very little time at all, and not need a blast cabinet. Apparently, it will eat concrete and asphalt too, so care is required
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Old 01-28-2005, 01:12 PM   #6 (permalink)
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Quote:
Originally Posted by bgrieger
You can use a product called Aircraft Stripper... Apparently, it will eat concrete and asphalt too, so care is required
eat concrete?! holy crap... and it doesn't hurt metal? wow...

And after i get the paint off (either sandblasting or with this super stripper), can i just clear coat it, or do i need to do more prep work?

Also, how long do I have to clear coat before the aluminium starts to oxidize? It would be kinda crappy if i were to strip and clear coat only to find rust/oxidization spots underneath the clear.
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Old 01-28-2005, 01:35 PM   #7 (permalink)
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probably w/ some paint thinner and then a tack rag to get rid of all dust and debris.
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Old 01-28-2005, 01:46 PM   #8 (permalink)
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Quote:
Originally Posted by xrs22
probably w/ some paint thinner and then a tack rag to get rid of all dust and debris.
Yea...i knew that's a given...but i wasn't sure if I had to give it a wash with any more chemicals...

Also, I was doing some research and found that automotive clear coats don't like raw aluminium very much...tru?
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Old 01-28-2005, 02:37 PM   #9 (permalink)
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Nothing sticks easily without some kind of adhesion promoter. They exist for aluminum, but I've never looked for one.

Guaranteed you will have to do some cleanup to get them looking their best. Polishing, some light sanding and perhaps some other cleanup are the minimum.

Bob
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Old 01-28-2005, 02:47 PM   #10 (permalink)
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Paint it with alum paint then clear coat it
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Old 01-28-2005, 02:48 PM   #11 (permalink)
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Hmm... Maybe I'll get them anodized instead... so many options...
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Old 01-28-2005, 02:58 PM   #12 (permalink)
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Well u can use a sealer so it seperates the raw material from the clear. Since primer is out, just do a little fine grit sanding after stripping it. Well let me ask my dad he's somewhat of an expert at paint and i'll let u know.
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Old 01-28-2005, 03:13 PM   #13 (permalink)
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Quote:
Originally Posted by xrs22
Well u can use a sealer so it seperates the raw material from the clear. Since primer is out, just do a little fine grit sanding after stripping it. Well let me ask my dad he's somewhat of an expert at paint and i'll let u know.
Excuse this simple question, but wouldn't a sealer hide the aluminium look that I'm after?
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Old 01-28-2005, 04:06 PM   #14 (permalink)
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Anodize still scratch easy. You can clear anodize it then clear coat.
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Old 01-28-2005, 04:18 PM   #15 (permalink)
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Quote:
Originally Posted by Pineapple
Anodize still scratch easy. You can clear anodize it then clear coat.
Actually, a good hard anodize is stronger than paint because it bonds with the metal on a molecular level.
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