Diamond Cut Alloys - Will it get worse?
Diamond Cut Alloys - Will it get worse?
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Integroo

Original Poster:

11,631 posts

116 months

Tuesday 3rd October 2017
quotequote all
Diamond cut alloys - what a pain! On my new car all four alloys have some form of corrosion where it seems the lacquer around the centre caps has broken when removing and refitting wheels, and water has got in behind the lacquer and caused the corrosion.





I have been quoted £370 to have them re-diamond cut, but with the comment that it might look a bit rubbish where the corrosion is and that it is only guaranteed for three months as diamond cut alloys are prone to this.

I have been quoted £280 to have them stripped and powdercoated, with a twelve month guarantee. (Suspiciously I phoned four places and all quoted me exactly £280 ... a little price fixing cartel anyone?!).

I also wondered: if I just left it, accepted it looks a bit crap, would that be fine, or would it slowly get worse and get to the point the wheels are dangerous and/or not saveable?

Thoughts welcome.

r11co

6,244 posts

261 months

Tuesday 3rd October 2017
quotequote all
Integroo said:
I have been quoted £280 to have them stripped and powdercoated, with a twelve month guarantee. (Suspiciously I phoned four places and all quoted me exactly £280 ... a little price fixing cartel anyone?!).
£70 a wheel, innit? A bit steep IMO as I know a firm local to me with an excellent reputation who would do it cheaper, but hey ho.

Integroo said:
I also wondered: if I just left it, accepted it looks a bit crap, would that be fine, or would it slowly get worse and get to the point the wheels are dangerous and/or not saveable?

Thoughts welcome.
Dangerous? Probably not. Utterly scabby and beyond cosmetic redemption? Almost certainly. Diamond cut-and-lacquered finishes on wheels just don't suit our damp, salty climate. I'd go with a good paint or powdered finish.

FN2TypeR

7,091 posts

124 months

Tuesday 3rd October 2017
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Exactly the same thing happened to the rage alloys on my FN2 - it did get worse over time yes but it won't make the alloy unserviceable or dangerous, it will just look pants

I ended up having them powder coated dark grey, you see a lot of rage alloys that have been painted as repairing the diamond cut finish is costly in comparison

KTF

10,717 posts

181 months

Tuesday 3rd October 2017
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Diamond cut wheels are a menace. I have had a few replaced under warranty and the replacements are bubbling away already.

Personally I would get them powder coated to solve the issue once and for all. The sooner this trend goes out of fashion the better.

Deerfoot

5,256 posts

215 months

Tuesday 3rd October 2017
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Integroo said:
Thoughts welcome.
Get a set of the smaller diameter Type R wheels, the ride on the Rage wheels is piss-poor.

Honestly, if you really want to refurb them I'd go for powdercoat over diamond cut.

C7 JFW

1,205 posts

250 months

Tuesday 3rd October 2017
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Diamond cut surfaces always corrode and nobody's come up with a solution to it (to date) that i'm aware of. I was told it's due to the fact the cut leaves, effectively a sharp edge which makes it difficult for clear lacquer to hold onto. In inevitably fractures (be that microscopically or other) and when it does, water gets behind it and lifts it.

I would always choose a powder cut where possible with wheels as it's so much more robust.

addsvrs

588 posts

247 months

Tuesday 3rd October 2017
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I have diamond cut alloys on my vehicle, just like yours water has got underneath the lacquer and they look awful. Speaking to the guy i have used before he has said not to bother as it will happen again in a few months time (although he hasnt got a CNC machine which is needed). Advised to just do a normal refurb for £150. Undecided.

designforlife

3,742 posts

194 months

Tuesday 3rd October 2017
quotequote all
Don't bother having them re-diamond cut, it'll just happen again.

Powdercoating a single colour is the way to go.


Integroo

Original Poster:

11,631 posts

116 months

Tuesday 3rd October 2017
quotequote all
I did consider the smaller wheels ,firstly to improve ride and secondly for cheaper tyres!, but I have just ordered four tyres at a cost of £530 (gulp) so sticking with the Rage's for now. Probably will go powder coating, but what colour ... thinking anthracite, gloss black or maybe a dark bronze.

Should of negotiated money off the purchase price to cover this, but oh well. 800 quid to spend in the first week on tyres and wheels ... plus fixing the rattly exhaust! laugh

designforlife

3,742 posts

194 months

Tuesday 3rd October 2017
quotequote all
the alloys and tyres is just wear and tear, so you probably wouldn't have gotten far in terms of knocking money off.

Most wheel colours go well with milano red, i was in a similar position and just went with standard honda satin silver on mine.

I think anthracite grey or silver would suit those the best, nice looking wheel, and you'll lose all that detail if you go black.


Integroo

Original Poster:

11,631 posts

116 months

Tuesday 3rd October 2017
quotequote all
designforlife said:
the alloys and tyres is just wear and tear, so you probably wouldn't have gotten far in terms of knocking money off.

Most wheel colours go well with milano red, i was in a similar position and just went with standard honda satin silver on mine.

I think anthracite grey or silver would suit those the best, nice looking wheel, and you'll lose all that detail if you go black.
Very true, and the price I paid was probably 600 to 1000 cheaper than a dealer price anyway, and at least I know I am putting decent tyres on rather than ditchfinders.

anonymous-user

85 months

Tuesday 3rd October 2017
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designforlife said:
Don't bother having them re-diamond cut, it'll just happen again.

Powdercoating a single colour is the way to go.
100% this

Diamond cut and road salt do not make good bed fellows!

windymissile

287 posts

160 months

Tuesday 3rd October 2017
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I had mine re-cut and it happened again within 1.5 summers. I only use them in summer too as I have a winter set with winter tyres. They're getting blasted and painted a single colour this winter.


WM

dtr

71 posts

148 months

Tuesday 3rd October 2017
quotequote all
Integroo said:
I did consider the smaller wheels ,firstly to improve ride and secondly for cheaper tyres!, but I have just ordered four tyres at a cost of £530 (gulp) so sticking with the Rage's for now. Probably will go powder coating, but what colour ... thinking anthracite, gloss black or maybe a dark bronze.

Should of negotiated money off the purchase price to cover this, but oh well. 800 quid to spend in the first week on tyres and wheels ... plus fixing the rattly exhaust! laugh
Use the tyres up and never wash the wheels or apply that horrid black spray gummy thing. Then sell up once they are worn out.

FIREBIRDC9

746 posts

168 months

Tuesday 3rd October 2017
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Yeah , the Diamond Cut alloys on my MR2 were awful.



I had them powder coated in the end!

Much better!



KTF

10,717 posts

181 months

Tuesday 3rd October 2017
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FIREBIRDC9 said:
Yeah , the Diamond Cut alloys on my MR2 were awful.

Those are not diamond cut alloys.

Rick101

7,191 posts

181 months

Tuesday 3rd October 2017
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Absolutely ste design. I don't know why people specify them and in many cases pay extra for them!

Usually milking within a year and a pain to get refurbished.

Bring back proper wheels.

Integroo

Original Poster:

11,631 posts

116 months

Tuesday 3rd October 2017
quotequote all
Rick101 said:
Absolutely ste design. I don't know why people specify them and in many cases pay extra for them!

Usually milking within a year and a pain to get refurbished.

Bring back proper wheels.
The 19" Rage alloys on the FN2 Type R that I have were a £1200 option when new. Despite a) being diamond cut and therefore having these problems b) making the tyres 140 quid a corner rather than 80 quid a corner and c) ruining the ride quality (it is bloody bumpy).

swisstoni

24,200 posts

310 months

Tuesday 3rd October 2017
quotequote all
Hope they are just a fashion. Wheel refurbers are probably doing very well though.
Had the option with the last new car and gave them a wide berth.

Sheepshanks

41,312 posts

150 months

Tuesday 3rd October 2017
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swisstoni said:
Hope they are just a fashion.
For some unfathomable reason VW put them on my daughters very basic 2011 Golf Twist - according to forums loads of owners got them changed under warranty but she looked after hers so they only had minor deterioration around the centres as it approached 3yrs old. Dealer refused to change them under warranty and said the damage was caused by someone trying to nick the centre caps (themselves unmarked). tts. VW UK said it's up to the dealer.

I've left them in protest. To be fair it's only recently that they've started to really go.

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