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How to sand back machined mags. 

 

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 Post subject: How to sand back machined mags.
Posted: Sun Mar 06, 2011 4:13 pm 
Oompa Loompa
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Hey guys. I just bought some 18" BA XR8 mags for the Ghia and they need a bit of a tidy up. I'm wondering what is the best way to sand them back in preparation for a fresh paint job. The search function failed me. Thanks for your help!
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 Post subject: Re: How to sand back machined mags.
Posted: Sun Apr 03, 2011 10:39 pm 
Getting Side Ways
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im doing mine at the moment mine are powder coated so i have to start with a grinder

but you should only need to start with 500 grit then work your way up too 2000 grit before buffing and polishing

your fingers are inn for a good work out trust me on that :lol:

 

 

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 Post subject: Re: How to sand back machined mags.
Posted: Mon Apr 04, 2011 8:22 pm 
Getting Side Ways
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eeeek grinder on alloy's, paint stripper maybe.... atleast be gentle.
They'll be clear anodized, how bad are they, are they just crazing or a bit of gutter lovinn :lol:

a form of pneumatic, or electric sander will make it much much easier if gutter lovin the case but otherwise if just as above, block it back a little, and should be right for coat.

 

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 Post subject: Re: How to sand back machined mags.
Posted: Mon Apr 04, 2011 9:41 pm 
Oompa Loompa
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Than guys, but a bit late, lol. My uncle (BOS XR8) and Istarted working on these last week. But mostly my uncle LOL. They had some real gutter loving, so the grinder had to be used on all of them. Firstly though, the clear was removed with the hand sander. Then with different grades (80-1200) on the face. He painted the insides of the spokes black and machined the face with this awesome drill bit. Then some clear to finish them off.
How they turned out, remember, these wheels were gutter rashes to oblivion!
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Just need tyres now.
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 Post subject: Re: How to sand back machined mags.
Posted: Wed Apr 06, 2011 7:48 pm 
Getting Side Ways
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SA, Australia

not a angle grinder blade but what is called a flap mate disc
its over lapping layers of sand paper on a disc to fit a grinder
powder coating is a c#nt to get off

thats the look im going for but in want a mirror finish

 

 

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 Post subject: Re: How to sand back machined mags.
Posted: Thu Apr 07, 2011 10:14 pm 
Oompa Loompa
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Yeah that's the disc.
Will be a lot of work getting to mirror finish!
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 Post subject: Re: How to sand back machined mags.
Posted: Fri Apr 08, 2011 12:06 am 
Getting Side Ways
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FKIN A, but it will be worth the time doing it now ill do my best but thinking of taking them to a machine shop/polisher
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 Post subject: Re: How to sand back machined mags.
Posted: Fri Apr 08, 2011 7:16 pm 
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Get a polishing wheel and some cutting compound/polishing compound and you will get a great polish, more effort you put in the better the job. When finished apply a good clearcoat, preferebly a 2pack clear.
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 Post subject: Re: How to sand back machined mags.
Posted: Sun Jan 22, 2012 3:01 am 
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Ride: 2003 BA XR6 N/A

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I have a set of 18 inch does rims and ALL of them have gutter rash from previous owners.
What's I dont want too buy others do whats the best way too fix the gutter marks?

Saw a comment about the sanding disc on the grinder but I wouldnt want too paint them after, what sort of "sealer" would I need for them after that?

Any sort of suggestion would be great and appreciated :)
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 Post subject: Re: How to sand back machined mags.
Posted: Sun Jan 22, 2012 11:22 am 
Oompa Loompa
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Ride: BF Fairmont Ghia

just used 2pac clear over the top. came out great. wheels still going good but i gutter rahed one after all that hard work lol.

used normal sanding paper to remove clear. then different grades of that flapper disk.

i have a picture of the tip used to give that machined finish ill put it up when i find it.
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 Post subject: Re: How to sand back machined mags.
Posted: Sun Jan 22, 2012 11:28 am 
Oompa Loompa
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Ride: BF Fairmont Ghia

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put this into a cordless drill and go over the whole surface. gives an awesome finish.
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