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Thread: Wheel refurb - powder coat vs diamond cut

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  1. Wheel refurb - powder coat vs diamond cut 
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    I'm about to get my wheels refurbed as my car's previous owner has kerbed the life out of them. They are the 2 colour / polished face twin 7 spoke design and I'm trying to decide on a straight powder coat allover or diamond cut on the front face. The cost of having them polished again seems prohibitive which is a shame as they look amazing apart from the kerbing! A few people have told me the diamond cut finish isn't very hard wearing - any opinions or experience on this would be appreciated as it's not something I've had done before.
    Last edited by far2tall; 19-09-2018 at 10:00 PM.
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  2. Re: Wheel refurb - powder coat vs diamond cut 
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    Diamond cut will not last long. It just need a chip to pierce the lacquer and the aluminium will corrode. I would powder coat silver. Not as good looking but will stay good for a lot longer and easier to touch up yourself.
    Audi A7 Dakota Grey, 3.0TDi 2wd, engine CLAB, Gearbox NKP, Comfort seats, parking system advance, advance key, MMI Nav plus, MMI touch, HUD, Mob phone prep high with on-line services, heated sports steering wheel, folding mirrors, garage opener, fine grain ash inlays. 110k miles
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  3. Re: Wheel refurb - powder coat vs diamond cut 
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    Quote Originally Posted by shabazmo View Post
    Diamond cut will not last long. It just need a chip to pierce the lacquer and the aluminium will corrode. I would powder coat silver. Not as good looking but will stay good for a lot longer and easier to touch up yourself.
    Agreed. Many people do this on BMWs who seem to suffer a lot with corrosion, even when they are not chipped. There are quite a few people on forums complaining about BMW arguing about replacing them under warranty. My diamond cut winter alloys that were stored after being cleaned and dried started to corrode around the centre bores. They were not chipped.
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  4. Re: Wheel refurb - powder coat vs diamond cut 
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    Winter is very corrosive on wheels. The salt will damage wheels both mechanically by impact and chemically. When audi supply winter wheels and tyres, the alloys are special winter ones.
     
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  5. Re: Wheel refurb - powder coat vs diamond cut 
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    Quote Originally Posted by shabazmo View Post
    Winter is very corrosive on wheels. The salt will damage wheels both mechanically by impact and chemically. When audi supply winter wheels and tyres, the alloys are special winter ones.
    I have never heard this with any manufacturer. Do they have a different part number?
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  6. Re: Wheel refurb - powder coat vs diamond cut 
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    Powder coat 100% .
     
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  7. Re: Wheel refurb - powder coat vs diamond cut 
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    My diamond cut wheels were showing corrosion quite early in their life - stck with the powder coat.
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  8. Re: Wheel refurb - powder coat vs diamond cut 
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    Quote Originally Posted by Frithwood View Post
    I have never heard this with any manufacturer. Do they have a different part number?

    The wheels are very different to summer stock wheels.

    Complete winter wheels > Complete wheels > Sport & design > Audi Genuine Accessories - Vorsprung durch Technik
    Audi A7 Dakota Grey, 3.0TDi 2wd, engine CLAB, Gearbox NKP, Comfort seats, parking system advance, advance key, MMI Nav plus, MMI touch, HUD, Mob phone prep high with on-line services, heated sports steering wheel, folding mirrors, garage opener, fine grain ash inlays. 110k miles
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  9. Re: Wheel refurb - powder coat vs diamond cut 
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    Quote Originally Posted by shabazmo View Post
    Thanks for that link. Learnt something new today.
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  10. Re: Wheel refurb - powder coat vs diamond cut 
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    Thanks for the advice guys. That's definitely enough to put me off diamond cutting! ...very interesting about the Audi supplied winter wheel sets too.
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