Author Topic: Paint Correction  (Read 10554 times)

Offline sambo

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Re: Paint Correction
« Reply #30 on: 07 November 2009, 09:31 »
Thanks for all your comments, ive had a look at the cctv and he did make 4-5 passes on the bonnet but overall didn't spend a lot of time on each panel, really lost confidence with this bloke!

Im gonna take it to vw, tell them ive had it only six weeks and noticed all these scratches/swirls on the clearcoat, hope they agree to correct it and continue to wash carefully and see if they come back as bad. If they do could argue there's a problem with the clearcoat but will ask them if they think there's a problem with the clearcoat on monday.

I would say it's almost impossible for the clearcoat to be applied in such a way that swirl marks are created in it. I have a tornado red mk5 and the car had some paint work done. It is a very easy colour for swirl's to show on and even the cloth/glove you clean your car with will cause swirls eventually. Go onto detailing world and even the most keen, careful pro's will tell you that after a correction session the give it a few months and they will start to come back. It's more of a case of minimising the effects so that regular correction is easy or products with fillers can easily hide them  :sad:


This is why i have given up trying to achieve a 100% swirl free car, don't have the time to do it!

Sam
Sam



AXX power!  ..   Tinkering has started.... :smiley:

Offline sundaydriver

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Re: Paint Correction
« Reply #31 on: 07 November 2009, 09:48 »
Thanks Sam, do they show up on your red golf easily?




2012 Golf R, APR STAGE 2+, BCS power valve TB exhaust, loba HPFP, evoms intake, Rising blue, 19" Talladegas -BMW M2

Offline avalon

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Re: Paint Correction
« Reply #32 on: 07 November 2009, 14:06 »
Thanks for all your comments, ive had a look at the cctv and he did make 4-5 passes on the bonnet but overall didn't spend a lot of time on each panel, really lost confidence with this bloke!

Im gonna take it to vw, tell them ive had it only six weeks and noticed all these scratches/swirls on the clearcoat, hope they agree to correct it and continue to wash carefully and see if they come back as bad. If they do could argue there's a problem with the clearcoat but will ask them if they think there's a problem with the clearcoat on monday.

Looking forward to your response next week, fella.


Ava
GTi DSG 5 Door Candy White [MY11]

Offline JonnyG

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Re: Paint Correction
« Reply #33 on: 07 November 2009, 14:10 »
Think I'd get a 2nd opinion from a local friendly detailer before going to a VW dealer.

You could ask on Detailing World as advised above.  

I suspect your detailer may not have used enough "cut" with the polishing - did he use a paint thickness guage and mask off your black trim / lights etc with masking tape ?   VW paint is very hard and is well known to need a lot of polishing.

The DPB paintwork on my car got completely swirled up (thanks to a garage  :angry:) and I had to use a very abrasive polish with a rotary polisher to get any removal at all.  Mild polish made no impact at all on the swirls.  I have a Paint thickness guage and this showed that even the abrasive polish (Menzerna Power Gloss) took a while to make any impression.

BTW if I rub my finger over my clearcoat straight after a polish I also get a mark.  Once polished you need to get it waxed or sealed straight away and then treat the paintwork with kid gloves - keep washing as contactless as possible with a pressure washer and foam lance etc..  You will be surprised just how easy it is to see the slightest mark under good lighting.  
« Last Edit: 07 November 2009, 14:20 by JonnyG »
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Offline sundaydriver

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Re: Paint Correction
« Reply #34 on: 07 November 2009, 14:55 »
Cheers JonnyG really appreciate all the feedback :smiley:




2012 Golf R, APR STAGE 2+, BCS power valve TB exhaust, loba HPFP, evoms intake, Rising blue, 19" Talladegas -BMW M2

Offline sundaydriver

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Re: Paint Correction
« Reply #35 on: 08 November 2009, 22:21 »
Had a message from my detailer about the thickness of my paint today which is as follows;


Readings were average 200-280um, which is extremely high, nearly double that of any VW I have ever done (I know VW QC is that if paint reading is less than 100um out of the factory, the car goes back to be sprayed again but 100um or above passes. On average, VW's are around 120um.) This is also indicative of something very odd with the paint. As such, it makes it very difficult to know where the clearcoat begins and ends in that reading (another reason for my caution) but certainly it won't be stupid thin, so I would be confident to remove another 1um or 2 (I've taken away 2-3um on the 5 hits I did.) It's estimated (nobody knows for sure) that 14um of clearcoat removal results in CC failure, so obviously you don't want to go anywhere near that figure on such a new car as that figure is for it's lifetime.

 :huh: :huh: :huh:





2012 Golf R, APR STAGE 2+, BCS power valve TB exhaust, loba HPFP, evoms intake, Rising blue, 19" Talladegas -BMW M2

Offline mac7

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Re: Paint Correction
« Reply #36 on: 09 November 2009, 14:37 »
Had a message from my detailer about the thickness of my paint today which is as follows;


Readings were average 200-280um, which is extremely high, nearly double that of any VW I have ever done (I know VW QC is that if paint reading is less than 100um out of the factory, the car goes back to be sprayed again but 100um or above passes. On average, VW's are around 120um.) This is also indicative of something very odd with the paint. As such, it makes it very difficult to know where the clearcoat begins and ends in that reading (another reason for my caution) but certainly it won't be stupid thin, so I would be confident to remove another 1um or 2 (I've taken away 2-3um on the 5 hits I did.) It's estimated (nobody knows for sure) that 14um of clearcoat removal results in CC failure, so obviously you don't want to go anywhere near that figure on such a new car as that figure is for it's lifetime.

 :huh: :huh: :huh:

Get him to measure the paint on another Mk6 Golf to compare thickness - 200um doesn't sound unreasonably thick to me. The car might have gone through the paint process twice or been repainted at a later date. That might also explain the 'poor' swirl marks you found in the paint.
Golf R

Offline percymon

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Re: Paint Correction
« Reply #37 on: 09 November 2009, 15:44 »
280um ! - did they paint it with a brush ??

Typical car paint systems are..

electrocoat        40-50um
surfacer/primer   25-30um
top coat            25-30um
Clearcoat           20-25um

Even taking the upper end of those you only get to 130/140um !!

Whatever thickness gauge he used it either needs calibrating or he needs to read the manual !


Offline sundaydriver

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Re: Paint Correction
« Reply #38 on: 09 November 2009, 17:54 »
280um ! - did they paint it with a brush ??

Typical car paint systems are..

electrocoat        40-50um
surfacer/primer   25-30um
top coat            25-30um
Clearcoat           20-25um

Even taking the upper end of those you only get to 130/140um !!

Whatever thickness gauge he used it either needs calibrating or he needs to read the manual !




No he's right, i went to the vw bodyshop today and he got measurements of 200+ plus i didn't tell them the detailer had cut it back. I rang where i bought it from and told them i want to reject the car, see how it goes tomorrow when they call back




2012 Golf R, APR STAGE 2+, BCS power valve TB exhaust, loba HPFP, evoms intake, Rising blue, 19" Talladegas -BMW M2