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 Post subject: Removing anodising.
PostPosted: Thu Feb 21, 2013 9:44 pm 
PoTM Winner
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Joined: Tue Sep 25, 2012 7:21 pm
Posts: 1156
I have a crank that has a section which has been polished by lots of shoe rub.

The only way I can see of making it nice is to polish it up bling style.

I don't want to use too much wet n dry which will remove engravings.

Did I see some suggestions about oven cleaner?

What are the details and techniques?


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 Post subject: Re: Removing anodising.
PostPosted: Thu Feb 21, 2013 9:59 pm 
Retro Guru
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Joined: Mon Sep 19, 2011 11:52 pm
Posts: 335
Location: Enniskillen
This is the only stuff I have used that works. When you put the part in it it will fizz slightly then turn white. Dont leave it much longer as it will turn black. A couple of minutes is enough. Works really well though.


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 Post subject: Re: Removing anodising.
PostPosted: Thu Feb 21, 2013 10:03 pm 
PoTM Winner
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So what do you do once you have removed it from the cleaner?

What strength do you mix it up to?


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 Post subject: Re: Removing anodising.
PostPosted: Thu Feb 21, 2013 10:04 pm 
retrobike rider
retrobike rider

Joined: Tue Jul 10, 2012 11:58 pm
Posts: 2362
Location: Bournemouth
I simply use Autosol, and a j cloth. It takes time, but is quite satisfying :)


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 Post subject: Re: Removing anodising.
PostPosted: Thu Feb 21, 2013 10:15 pm 
Retro Guru

Joined: Tue Oct 16, 2012 4:16 pm
Posts: 1568
Location: NOTTINGHAM
Mothers Mag, semi abrasive cloth then a soft cloth, oh and a few spare hours.


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 Post subject: Re: Removing anodising.
PostPosted: Thu Feb 21, 2013 10:31 pm 
Retro Guru
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Joined: Mon Sep 19, 2011 11:52 pm
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Location: Enniskillen
Just use neat from bottle. Its really thick. (you can pour it back in when finished.) wash the part thoroughly with lots of water. If you have light scratching you can use something like 1200 wet and dry to remove scratches. Then finish with autosol and a soft cloth. Sit back and marvel at your nice and shiny looking part! (sounds a bit like a line from a carry on movie)


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 Post subject: Re: Removing anodising.
PostPosted: Thu Feb 21, 2013 10:34 pm 
retrobike rider
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Joined: Sun Feb 19, 2012 10:08 am
Posts: 6843
Location: Nth Somerset, UK
Caustic soda will remove anodising, but you must do the work outside and wear some gloves and glasses.

The alloy may go black in places as the anodising comes off, but it will polish off easily.


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 Post subject: Re: Removing anodising.
PostPosted: Thu Feb 21, 2013 10:48 pm 
PoTM Winner
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kettlo wrote:
Just use neat from bottle. Its really thick. (you can pour it back in when finished.) wash the part thoroughly with lots of water. If you have light scratching you can use something like 1200 wet and dry to remove scratches. Then finish with autosol and a soft cloth. Sit back and marvel at your nice and shiny looking part! (sounds a bit like a line from a carry on movie)


So tip the bottle contents in a bucket, the drop your part in for 2 minutes, the rinse and polish with autosol?


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 Post subject: Re: Removing anodising.
PostPosted: Thu Feb 21, 2013 10:53 pm 
retrobike rider
retrobike rider

Joined: Tue Jul 10, 2012 11:58 pm
Posts: 2362
Location: Bournemouth
seriously, it takes time, but just use autosol. I'll get you pics in the morning.


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 Post subject: Re: Removing anodising.
PostPosted: Fri Feb 22, 2013 1:00 am 
Retro Guru

Joined: Sun Jun 20, 2010 4:39 pm
Posts: 1455
seriously, it takes less time...800 wet, 1500 wet, 2000 wet, g3 compound, autosol :D


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