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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > UK > UK Technical Forum > DIY wheel refurb following severe kerbing



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      04-24-2010, 08:33 AM   #1
Evil Diesel
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DIY wheel refurb following severe kerbing

Having avoided a pedestrian with a death wish by taking a high kerb I had major damage all around the rim:

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Materials used:

Wurth Silver Lacquer
Wurth Clear Lacquer
Primer
Thinners
Pack of mixed Grade Wet & Dry paper
Ipson Metalik filler
Rags, white spirit and various cleaners and polish

A good supply of smokes and coffee helps too ………

Step 1

Sand damage with 240 grit w&d to even the finish and remove any protruding metal:

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Step 2:

Clean the wheel thoroughly (I spent a while here using wheel cleaner, fairy liquid and white spirit). Apply filler and sand with 600 grit paper. I used an eraser as a sanding block to get a flush finish.

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Repeat until the surface is even stepping back to 800 grit and 1200 grit paper:

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Step 3

Mask and apply 2 coats of primer. I applied a hard mask here to apply the primer to the damaged areas only and wet sanded back using 1200 grit paper. This was a mistake as there was still a fine line from the hard mask (indiscernible to feel or eye when primed) which showed up when the first coat of silver lacquer was applied resulting in the affected area needing to be sanded back to the primer and feathered again:

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Step 4:

Sand back primer with 1200 grit paper, clean with white spirit and apply a soft mask. Apply silver lacquer. I used 4 light coats of lacquer allowing about 15 minutes between coats (warmish day and sunny) to allow the paint to flash over:

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Step 5:

Having left the paint to cure for several hours remove masking on the rim (not tyre!) and apply clear lacquer. I used 5 thin coats 15 mins apart to allow for cutting polishing later;

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Step 6:

Remove remainder of masking and use thinners to remove overspray from spokes and centre.

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Step 7:

Leave to cure overnight and use cutting polish (I used T Cut) to bring to final finish:

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      04-24-2010, 08:37 AM   #2
ed335d
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Good effort!
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      04-24-2010, 08:38 AM   #3
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I was quite pleased given how knackered the rim was.

The Wurth paints give a spot on colour match too.
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      04-24-2010, 08:52 AM   #4
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Having done this myself I know its not easy to get a good finish! Good job.

As I was reading I thought for a minute you were going to do the whole lot with it still on the car.....
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      04-24-2010, 09:04 AM   #5
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Very well done mate.
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      04-24-2010, 09:16 AM   #6
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Quote:
Originally Posted by ///ajd View Post
Having done this myself I know its not easy to get a good finish! Good job.

As I was reading I thought for a minute you were going to do the whole lot with it still on the car.....
That silver lacquer gets everywhere. The last thing you need is a new clay bar project while finishing off the rim!
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      04-24-2010, 09:23 AM   #7
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Send a message via AIM to Alan@PYSpeed.com[retired]
nice write up! i did the same thing using similar materials a few years back.

smoking kills!
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      04-24-2010, 11:10 AM   #8
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Excellent job
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      04-24-2010, 11:54 AM   #9
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Very brave IMO, looks like a good job though.
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      04-24-2010, 12:57 PM   #10
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feck me - that's very impressive
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      04-24-2010, 01:04 PM   #11
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Looks like a lot of work but you did a fantastic job!
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      04-24-2010, 01:07 PM   #12
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Is this one your new set of wheels - your original set got nicked didn't they??

PS Smoking kills
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      04-24-2010, 01:28 PM   #13
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Looks great! I have a kerbed wheel to do at some point. And a scraped bumper, keyed door, various gouges and scratches. Glad the previous owner had fun!
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      04-24-2010, 01:29 PM   #14
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That wheel to refurb at Pristine Wheels would be 150-worth of work. Well done.
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      04-24-2010, 01:41 PM   #15
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Tony, great repair job there buddy. Shame you caught thr new wheel
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      04-24-2010, 01:45 PM   #16
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It looks like (from your pics) that the lip of the rim is still damaged??

Did you think about letting the tyre down to repair around the rim too?

It certainly proves that if you have enough time, a lot of light cosmetic damage can be repaired to a good finish without having to spend a small fortune.

Can you list the Wurth part numbers pls?
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      04-24-2010, 02:06 PM   #17
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Quote:
Originally Posted by Ant Man View Post
It looks like (from your pics) that the lip of the rim is still damaged??

Did you think about letting the tyre down to repair around the rim too?

It certainly proves that if you have enough time, a lot of light cosmetic damage can be repaired to a good finish without having to spend a small fortune.

Can you list the Wurth part numbers pls?
There is still a bit of damage on the tyre side of the rim but didn't get to grips with it this time - I needed the tyre inflated to follow the line to keep the repair round given the extent of the damage (Carl - this was one of the old rims thank f*ck). Also, given that I have just had 2 new rims fitted 2 weeks ago and they both show pothole damage already (been nowhere near the kerb on the o/s) I imagine that there will be another refurb in the offing in the not too distant future and I can have a go at the rest of the rim next time. Ideally it would be best to get the tyre off altogether for this job but letting it down would give a bit more room.

I will check the tins tomorrow and list the part numbers but these were sourced from Performance Motorcare as follows:

1 "Wurth German Alloy Silver Wheel Paint Lacquer - 400ml"
10.99

Sold by: Performance Motorcare
1 "Wurth High Gloss Clear Alloy Wheel Lacquer - 400ml"
10.99

Thanks to all for the comments - I am fairly pleased with the finish given the extent of the original damamge, especially the paint match. Certainly if the area damaged was smaller then you could spend more time to get all of the affected area properly repaired and I think you could acheive a seemless finish. As I outlined above the major mistake was the hard mask when priming - it seemed a good idea at the time given that I would be wet sanding this later and could keep the primer to the area of repair but it reallyt did come back to haunt me when the lacquer was applied.
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      04-24-2010, 03:33 PM   #18
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where you get the filler from?
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      04-24-2010, 05:48 PM   #19
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Halfrauds

All said the materials came to about 40
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      04-24-2010, 06:44 PM   #20
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Bloody hell, cracking job there mate
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      04-24-2010, 07:05 PM   #21
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I tried repairing my curb rash on my old rims too. But I failed. really badly. Great job!!! This is not easy to do.

Rims look great!!!
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      04-25-2010, 03:24 AM   #22
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Fantastic effort
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