Paintwork on roof and bonnet

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AshLaw
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Paintwork on roof and bonnet

Post by AshLaw » Sat Jul 22, 2017 8:05 am

Hiya,

Is it a common problem that the paintwork on the roof and bonnet go like someone has had a scouring pad on it?

When I bought my Puma 3 years ago the paintwork was near perfect but over time the roof has gone like someone's been at it with a scouring pad - even feels very rough and the bonnet looks like the lacquer is cracking.

Any ideas?
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Last edited by AshLaw on Sat Jul 22, 2017 5:27 pm, edited 1 time in total.
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Robyorks
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Paintwork on roof and bonnet

Post by Robyorks » Sat Jul 22, 2017 10:10 am

Regular waxing helps but sounds like it's too late :(
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tuonokid
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Paintwork on roof and bonnet

Post by tuonokid » Sat Jul 22, 2017 10:35 am

Try using a clay bar on the roof, that should remove the roughness.
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AshLaw
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Paintwork on roof and bonnet

Post by AshLaw » Sat Jul 22, 2017 5:30 pm

Its been clay barred several times and regularly waxed.

This has appeared in the last six months and is getting worse.
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Brian'
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Paintwork on roof and bonnet

Post by Brian' » Sat Jul 22, 2017 6:35 pm

Never seen this happen on a Puma before. But I think the clear coat is failing.. :(
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suicidalllama
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Paintwork on roof and bonnet

Post by suicidalllama » Sun Jul 23, 2017 5:40 pm

I've got the same thing on mine (also melina blue) though it's the roof and boot lid for me. The bonnets just rock chipped to hell. I've tried a fair few things (wax, clay, aggressive polishing) but it'll need a respray to look good again.
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Paintwork on roof and bonnet

Post by SLEEMAN » Mon Jul 24, 2017 9:50 pm

unfortunately those panels will need repainting, as above its the lacquer failing over long periods of being baked under direct sun. so it all needs sanding back and repainting.

either that or you can get them wrapped instead cheaper alternative?
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Paintwork on roof and bonnet

Post by Fanwheel » Tue Jul 25, 2017 6:21 pm

Oh dear sorry if you have to think about a respray. I wonder if some colours are more prone to this than others. I've seen a few very faded-looking red pumas on eBay in particular.
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Paintwork on roof and bonnet

Post by ArtfulHussy » Wed Jul 26, 2017 9:45 am

I'd probably go for a wrap for the moment, if it comes down to money. Between you and a pal you should be able to do a decent job on a bonnet and roof with the help of a hair dryer.
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Paintwork on roof and bonnet

Post by Brian' » Sat Jul 29, 2017 11:28 am

I would wrap the roof and find a good replacement bonnet in the same colour.
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Frank
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Paintwork on roof and bonnet

Post by Frank » Sat Jul 29, 2017 12:42 pm

AshLaw wrote: When I bought my Puma 3 years ago the paintwork was near perfect but over time the roof has gone like someone's been at it with a scouring pad - even feels very rough and the bonnet looks like the lacquer is cracking.

Any ideas?
I think you need to get some specialised advice on this to find out the cause and it take it from there. I know there are detailing forums around and here's a couple of general links on this stuff - http://www.cleanercars.co.uk/paint-renovation/ and
http://www.carpaintrepairinfo.com/how-t ... 5-minutes/

One thing is for sure - that roof is got going to get any better, it'll either stay the same or get worse and you need to know which and why it happened. Then the search to find someone good to fix it will begin, finding someone good is never easy. In fact, that'll probably turn out to be the hardest bit of this.

Certainly, wrapping is an option and done by pros using proper 3M materials then the results are first class. But, aren't we forgetting something here? We have an unstable actively degrading surface and no idea if all the lacquer is about to lift and people here are suggesting putting a wrap on that? Plus -
The Vinyl Car Wrapping Process

So what kind of process is involved?

Applying vinyl is not very different to a repainting job.

You need to fix every scratch, dent and rusty spot before you put it on. If you don’t, every defect will show through.
https://vinylcuttingmachines.net/vinyl- ... ers-guide/

Hmm, by the time you've done that, wouldn't it just be easier/better to get it resprayed to match the rest of the car?
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Paintwork on roof and bonnet

Post by dado1991 » Sun Jul 30, 2017 12:26 pm

Hi AshLaw,
i have the same issue with my roof (also blue melina) and i am planning on respraying it. But my roof is in worst shape than yours. Here are some pics
Image
Image
Image
Image
Good luck mate :-)
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Frank
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Paintwork on roof and bonnet

Post by Frank » Sun Jul 30, 2017 2:02 pm

This is a beaut of a thread - http://www.meguiarsonline.com/forums/sh ... to-Archive

The only thing that is not explained properly there (probably because those guys are all about waxes, fluids, etc and not car spraying) is just how much preparation is needed prior to respraying (or wrapping, really). What I mean, is it just flat it off and respray or sand the whole lot down to basecoat and respray? I say that, because it strikes me that just spraying over what is effectively an unstable sub-surface would probably mean that things will not turn out well.

My own roof is nothing like as bad as anything in any of these pictures here or in that thread, but in strong sunlight I can see it's less than ideal and I think I have the start of those 'crow's feet' as well, so mine will need attention at some stage as well.
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Paintwork on roof and bonnet

Post by SLEEMAN » Sun Jul 30, 2017 9:40 pm

When paint is that bad is needs stripping down to the base coat possibly primer. As that's a typical sign of baked paint, where over time the surface is subjected to a lot of sun and heat and the lacquer fails after many many years of doing it's job.

Depending on how far it's been affected, the prep may encounter issues where all the basecoat may have to be removed and reprimed
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Paintwork on roof and bonnet

Post by Robyorks » Sun Jul 30, 2017 10:48 pm

You could try flatting it back with some wet and dry, see if you can get rid of the lacquer? If your careful not to go through the base coat you MIGHT just get away with mopping it back to a semi-decent finish. Maybe try a small spot with some 1200 grit paper, see what happens. Can't really make it look much worse :-(

Rob.
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