Help & Advice Needed
Discussion
I took my year old Porsche in for some warranty work last week only to get it back with a large scratch in the bonnet 
OPC have looked at it and have said they will polish / repaint bonnet as necessary? I'm concerned how this will affect resale if they have to respray it? What else should I be doing / asking?
Hope somebody can help?
OPC have looked at it and have said they will polish / repaint bonnet as necessary? I'm concerned how this will affect resale if they have to respray it? What else should I be doing / asking?
Hope somebody can help?
Edited by Globezero on Monday 5th February 19:08
Hi John,
Which colour Porsche do you have? It all depends on how deep the scratch is to whether it can be polished out or not with a machine, but if they remove to much clear coat, you could get clear coat failure eventually, so make sure they measure the paint before and after any machine work is carried out. Failing that, it will have to be a respray which shouldn't affect resale value at all if sprayed correctly and the colour matches.
If I can be of any more help please do not hesitate to ask!
Kind Regards
Paul.
Which colour Porsche do you have? It all depends on how deep the scratch is to whether it can be polished out or not with a machine, but if they remove to much clear coat, you could get clear coat failure eventually, so make sure they measure the paint before and after any machine work is carried out. Failing that, it will have to be a respray which shouldn't affect resale value at all if sprayed correctly and the colour matches.
If I can be of any more help please do not hesitate to ask!
Kind Regards
Paul.
Thanks Paul
Scratch is deep enough to feel with a finger nail
Colour is Midnight Blue... As you probably know it's not the best colour for hiding scratches... in fact when it has been repaired I'm looking to get the whole car detailed
Scratch is deep enough to feel with a finger nail
Colour is Midnight Blue... As you probably know it's not the best colour for hiding scratches... in fact when it has been repaired I'm looking to get the whole car detailed
Edited by Globezero on Tuesday 6th February 08:27
Tried to reply yesterday but couldn't - problem appears to be solved now though.
The first thing you need to do is find out if the scratch is through the Clear coat.
If it is, unfortunately which will involve painting, though it may not be as bad as you think. If the basecoat isn't penetrated fully you may get away with a clearcoat blow-in with the area properly prepped. then it'll need re-polishing.
Have the garage admitted liability for this?
All the best - Nick.
The first thing you need to do is find out if the scratch is through the Clear coat.
If it is, unfortunately which will involve painting, though it may not be as bad as you think. If the basecoat isn't penetrated fully you may get away with a clearcoat blow-in with the area properly prepped. then it'll need re-polishing.
Have the garage admitted liability for this?
All the best - Nick.
Hello again....
If it still appears blue that's an encouraging sign however, just to be devil's advocate you could be looking at a blue primer. My opinion would be that Porsche wouldn't use a blue primer because it's far to complicated to 'mass produce' cars on an automated painting line with too many primer colours. (purging robots wastes paint and German don't do waste!) My bet would be that that car is primed in black.
Here at RR, we only use white, black or red. Red is the only dedicated 'colour' primer because of the woeful hiding power of red basecoats - they need a head start to achieve colour in most series-deliverable film thickneses, it's a material property of the pigments used in reds - they are 'weak'...
I think (correct me if i'm wrong Paul) that what Paul was saying was that if you can feel it with your finger nail it can't be 'safely' polished out, even by starting with wet-sanding there is a risk of going to far and hitting the basecoat. Having a clearcoat repair is simpler because there are no issues with colour matching. That said, most dark blue basecoats would be applied with a film thickness of 12-18 microns and clearcoat at least 30 microns, probably more on a bonnet. The reason I state these figures was to illustrate that once in the basecoat, it's not far to the primer and modern basecoats are VERY brittle.
If I had to repair this car (without having seen it of course!!!) I would attempt to wet sand the scratch out first, as I'd have nothing to lose if you see what I mean...
Apologies for the essay but I wanted to give a complete answer !!!
Good luck - at least they're honest enough to admit it...
regards - Nick.
@Paul: Did you get my email last week Paul?
If it still appears blue that's an encouraging sign however, just to be devil's advocate you could be looking at a blue primer. My opinion would be that Porsche wouldn't use a blue primer because it's far to complicated to 'mass produce' cars on an automated painting line with too many primer colours. (purging robots wastes paint and German don't do waste!) My bet would be that that car is primed in black.
Here at RR, we only use white, black or red. Red is the only dedicated 'colour' primer because of the woeful hiding power of red basecoats - they need a head start to achieve colour in most series-deliverable film thickneses, it's a material property of the pigments used in reds - they are 'weak'...
I think (correct me if i'm wrong Paul) that what Paul was saying was that if you can feel it with your finger nail it can't be 'safely' polished out, even by starting with wet-sanding there is a risk of going to far and hitting the basecoat. Having a clearcoat repair is simpler because there are no issues with colour matching. That said, most dark blue basecoats would be applied with a film thickness of 12-18 microns and clearcoat at least 30 microns, probably more on a bonnet. The reason I state these figures was to illustrate that once in the basecoat, it's not far to the primer and modern basecoats are VERY brittle.
If I had to repair this car (without having seen it of course!!!) I would attempt to wet sand the scratch out first, as I'd have nothing to lose if you see what I mean...
Apologies for the essay but I wanted to give a complete answer !!!
Good luck - at least they're honest enough to admit it...
regards - Nick.
@Paul: Did you get my email last week Paul?
soon.
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