GolfGTIforum.co.uk
Model specific boards => Golf mk5 => Topic started by: Cass on 17 February 2009, 00:23
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Anyone out there got a Paint Thickness Gauge :huh:
Need some independent figures as my car is finally going to my local bodyshop this week.
Following a professional detail, the paint thickness on my roof is much less than that across the rest of the car :cry:
My detailer has taken measurements with a DelFesko gauge, which reads in mills/microns and is supposed to be highly accurate (to within 0.1mls). My paint readings are measured in 'um'. The roof paint reading is almost half that of the rest of the car :shocked:and it's supposed to have been resprayed :angry:
Thanks in advance for any (quick) responses :wink:
Cass
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You may get a better response on a detailing site Cass, although you may get lucky as there are a few
obsessive compulsive enthusiastic cleaners on here :laugh:
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Following a professional detail, the paint thickness on my roof is much less than that across the rest of the car :cry:
My detailer has taken measurements with a DelFesko gauge, which reads in mills/microns and is supposed to be highly accurate (to within 0.1mls). My paint readings are measured in 'um'. The roof paint reading is almost half that of the rest of the car :shocked:and it's supposed to have been resprayed :angry:
how 'professional' was the detail? There are detailers out there who will map out the thickness of the paint at various points around the car before starting any correctional work.
'um' = µm = micrometres or 'microns'
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I'm sorry I can't be any more specific but I do recall reading a post on another forum that said basically the same thing i.e. that the paint on the roof of mkv golfs was very very thin.
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that the paint on the roof of mkv golfs was very very thin.
You know what, I remembered something like that but then didn't know where I'd read it.
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Following a professional detail, the paint thickness on my roof is much less than that across the rest of the car :cry:
My detailer has taken measurements with a DelFesko gauge, which reads in mills/microns and is supposed to be highly accurate (to within 0.1mls). My paint readings are measured in 'um'. The roof paint reading is almost half that of the rest of the car :shocked:and it's supposed to have been resprayed :angry:
how 'professional' was the detail? There are detailers out there who will map out the thickness of the paint at various points around the car before starting any correctional work.
'um' = µm = micrometres or 'microns'
Very professional and a top detailer IMHO - web link here:
http://www.wonderdetail.co.uk/
According to Paul, the paintwork thickness of my roof doesn't reflect the thickness of other VW's he's worked on. As mine has allegedly been repainted, I'm obviously a bit concerned about this. I'm discussing the implications with the VW dealer bodyshop manager tomorrow.
Thanks for the other posts and steers guy's
Cass
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I have
Obsessive Car Detailing OCD syndrome and yeah, I admit it, I have a paint thickness guage :rolleyes: :embarassed:
Just taken some measurements for you :
My roof measurements are around 114um to 130um, with many around 114-116 in the middle
My bonnet measurements were all around 122um-144um, so a little higher, but certainly not as big a difference as yours
All my measurements are total thickness of all layers (my PTG doe'snt measure each layer)
Let me know if you want any other measurements
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The roof paint reading is almost half that of the rest of the car
Hmm....reading = paint(thin) + clearcoat(thick)
Maybe they polished the clear coat down?
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I have Obsessive Car Detailing OCD syndrome and yeah, I admit it, I have a paint thickness guage :rolleyes: :embarassed:
Just taken some measurements for you :
My roof measurements are around 114um to 130um, with many around 114-116 in the middle
My bonnet measurements were all around 122um-144um, so a little higher, but certainly not as big a difference as yours
All my measurements are total thickness of all layers (my PTG doe'snt measure each layer)
Let me know if you want any other measurements
Cheers for the figures - my readings are as follows:
Side panels/doors/wings - all in the region of 122 - 129,
Tailgate - 122 - 128
Bonnet (which has been resprayed) is 220 - 235
Roof is only 75 - 89
Does appear that the roof may have been savagely cut to get rid of the problem, although the dealer insists it was repainted.
Been in to see the Bodyshop Manager today - have had initial discussions and sent him a copy of my paint depth report from the detailer. Will wait to see the response from dealer and VW before getting the issue finalised :angry:
Watch this space :rolleyes:
Cass
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There are some really expensive PTG's that will read the thickness of each layer - that would be conclusive evidence
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Yes these figures don't really say a lot, what you really need to know if the depth of the clearcoat as this is what will be party removed during paint correction. Clearcoat should be around 30-40 microns.
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Yes these figures don't really say a lot, what you really need to know if the depth of the clearcoat as this is what will be party removed during paint correction. Clearcoat should be around 30-40 microns.
On that basis I have no clearcoat left :shocked:
Cass
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Update as promised.
Went to dealer bodyshop yesterday and they agreed to repaint/clearcoat the roof without issue :smiley:
I was also given a copy of the VW Paintwork service document which states that the paint layer must be at least 80 microns in thickness and on colours with a clearcoat, the paint and clearcoat combined must be at least 100 microns. Total with repaint must not exceed 400 microns.
I don't have the individual readings for paint/clearcoat on my car, but as they are mostly less than 80 microns, it does seem as if the clearcoat has been aggressively polished out.
So now just got to agree a date for a repaint, hope they do a good job and don't scratch/damage the rest of the car :undecided:
Cass
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That's good news - keep us updated. :smiley:
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Iirc there was a post on detailing world that said as a guide you can do a reading inside the door openings. Generally these are lightly clearcoated and tend to reflect the paint thickness before the clearcoat is built up ion the body panels.
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Iirc there was a post on detailing world that said as a guide you can do a reading inside the door openings. Generally these are lightly clearcoated and tend to reflect the paint thickness before the clearcoat is built up ion the body panels.
Cheers for that. I had no dispute at the dealers bodyshop with the Asst Manager and they didn't even measure the paint depth on my car, taking my detailers readings as gospel. Armed with the manufacturers recommended paint/clearcoat depth, and at my request to resolve the issue to my satisfaction, they have agreed to repaint/clearcoat the roof. I'm not making too much of a fuss about it as the service dept and bodyshop fell out over who was to blame when the original problem occurred - no argument in my view - bodyshop did it :angry: It seems clear to me that all the bodyshop did was aggressively polish out the offending mark and levelled the clearcoat substantially in the process. The low readings indicate this. When the job is done, I plan to get my detailer to level the roof in line with the rest of the car and I'll ask him to take readings from the door openings as a benchmark.
Chiers for the tip :wink:
Just noticed tonight that 2 of my lovely 18" Mpnza II alloys have the start of corrosion creeping under the lacquer :shocked: Spoke to warranty dept tonight and car will be in tomorrow to have them inspected and (hopefully) replaced - no kerbing at all, one wheel has it just inside the outer rim and the other inside one of the circular spokes :angry: Must have a close inspection of the front 2 tomorrow in daylight :wink:
Cass