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[albitz]

Is wurth trade only?i have a store nearby and my mate swears by their penetrating spray.

http://www.ebay.co.uk/itm/Wurth-German-Alloy-Silver-Wheel-Spray-Paint-/271212945958?pt=UK_Cars_Parts_Vehicles_Other_Vehicle_Parts_Accessories_ET&hash=item3f258d2226

[hoody]

thanks for the link

[dbdb]

Agreed, aluminium/aluminium alloy needs an etch primer for good paint adhesion

I always use epoxy and it never missed a beat

Cost cem 

1 galon of good quality epoxy approx 60-70£.. once you buy, believe me its cheap you can paint everything

I've not had brilliant results with epoxy glue and aluminium.  Not nearly as good as steel anyway.  I suspect any paint or glue would stick better to clean oxidised aluminum than to freshly sanded alu.  Alu is very keen to oxidise albeit only the surface. 

[cem_devecioglu]

Agreed, aluminium/aluminium alloy needs an etch primer for good paint adhesion

I always use epoxy and it never missed a beat

Cost cem 

1 galon of good quality epoxy approx 60-70£.. once you buy, believe me its cheap you can paint everything

I've not had brilliant results with epoxy glue and aluminium.  Not nearly as good as steel anyway.  I suspect any paint or glue would stick better to clean oxidised aluminum than to freshly sanded alu.  Alu is very keen to oxidise albeit only the surface.

painted 2 sets of alu wheels , not even a scratch or stone chip on epoxy but paint and laquer had small damages from stone chips as expected..   what brand you use ?
 
ps: I'm using glassurite brand , also tested on plastic parts without primer and no problems so far..

[cem_devecioglu]

as a general rule, epoxy primer is too much dependant on application rather than the surface..
 
hardener ratio and surface thickness and dry-up time (before actual painting) is critical,
 
if it didnt dry up properly you can remove even with your finger nail..

[dbdb]

here's how they look one year on 

http://www.omegaowners.com/forum/index.php?topic=114643.msg1458624#msg1458624

wow that's pretty convincing that the paint works direct on freshly sanded aluminium with no primer. 

[Olympia5776]

I painted one spoke and a section of rim on a set of Elite alloys I bought about 5 years ago . After a lot of searching I found that most German manufactured alloys wheels use Wurth paint . Here's a couple of photos of the repair , as you can see the flake size and shade  are exactly as original . I used U-Pol UV resistent lacquer to finish.
There has been no deterioration in the finish over the years.
The painted spoke

[Mr.OmegaMan]

Nice Job! 

[dbdb]

Can't see the join at all, great job. Can we take bets on which spoke it is in the final photo? £500 says it's the ten o'clock one 

Was that direct onto sanded ally as well or did you use a primer on the bare metal?

[Olympia5776]

I struck lucky buying a set of Elite wheels off E bay and when they arrived they were literally boxed and as new. One wheel had two light scratch marks which had went through the paint and  into the alloy . I flatted back the scratches to the alloy base feathering the old paint filled and smoothed the scratches ,although as I said they were very light ,and then applied several light coats of U-Pol high build primer flattening back with wet 1200 grit after each coat . The remainder of the wheel was in such perfect condition I wanted to keep the painting to a minimum. I think there are three light coats of Wurth paint ( It must have been 6 years ago now although the photos are dated 2010 ) At that time I was using aerosols .
The lacquer is U-Pol UV resistent No 1 which I always used until I started spraying with a compressor , and found it absolutley clear with no taint. I would have applied six or eight light to medium coats of lacquer allowing time to flash off in between and wet flatted with 1200 or 1500  every second coat . The last coat was 2000 grit wet and then compounded and polished.The finish is still as day 1 .
The re painted spoke is at 11 o'clock in the last photo.( I think............. ) and the repair continues to the rim of the spoke on the other side of the valve port taking in the recess for the valve port and up to about 3/4 " from the rim .