Bad paint mark....
Author
Discussion

morebeanz

Original Poster:

3,283 posts

265 months

Tuesday 2nd August 2005
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I don't yet have a picture to post of this, so...

...smack in the middle of the beasty's bootlid is a patch of paintwork that I can only describe as frosted. It is still the "right" colour, but from certain angles, you can clearly see the patch and other angles the frosting is almost invisible. Texturally it looks like someone crumpled sellotape up and left it on the lid, BUT I have cleaned, polished, clayed, etc and the mark remains.

Any ideas (apart froma respray!)...

groucho

12,134 posts

275 months

Tuesday 2nd August 2005
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It won't cost that much to get the boot resprayed, will it?

loose cannon

6,057 posts

270 months

Tuesday 2nd August 2005
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have you tried mop'ing the boot lid with farecla g3 cutting compound, or by rag on the affected area
or if your really daring try a bit of flour paper and water then use the g3 after followed by a finishing polish, worth a go if you get it painted anyway,

-SXS-

172 posts

254 months

Wednesday 3rd August 2005
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I had the same thing on mine I think, i poured a few drops of GRD44 and then hairdryed it for a few minutes... t-cutted it and polished it then waxed it over and it was sorted....

if your paint itself has somehow oxidized or what you might call it, then you would need to get the lid resprayed.... problem is matching the paint properly if the rest of the body paint has naturally weathered a bit...

Dutchone

190 posts

261 months

Wednesday 3rd August 2005
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I would have thought that as long as the finish on the adjacent panels had not deteriorated, an experienced automotive sprayer worth his salt could colour match 'weathered, shade variations of the original colour spec.

morebeanz

Original Poster:

3,283 posts

265 months

Wednesday 3rd August 2005
quotequote all
SXS

What is this GRD44 that you refer to? Is it available in "normal" shops or is it some super-trick stuff?

I know what you're like with your technical kit!

cv1040

65 posts

255 months

Wednesday 3rd August 2005
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From my own experience although lots of people say NO NO don't use T Cut, it's about the only thing I find that can deal with these marks. G3 is OK, but T Cut works harder and faster.

For sure if you don't have much paint thickness left then you're looking at a re-spray anyway.

My 'system' is:

- clean up surrounding area with something like Autoglym Intensive Tar remover (or anything similar to get rid of what's on your pain at the moment)
- use a clean duster with a blob of well shaken T Cut work away in a circular motion over the mark, anything between 1-300 motions (sad, but true I do count them) at light to medium pressure and the mark should vanish, renew your blob of T cut every 100 motions and inspect clean up each time for progress
- once the mark has gone, follow up with Meguires Scratch X, works a charm at getting rid of the T Cut residue and any micro scratches left behind, clean up with a micro-fibre cloth, repeat if necessary
- then apply your chosen wax finishes on top

I've used the above method on straight 2 pack (no clear coat) and metallic / clear coat and even the most hideous berry juice impregnated bomb load from a flock of over fed pigeons have been completely removed.

Worst case scenario, if the above doesn't work out is the loss of a few quid and a bit of elbow grease.

Good luck!

John

apguy

841 posts

277 months

Wednesday 3rd August 2005
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The mark that is described sounds like it is in the lacquer. Usually as a result of a base coat reaction but sometimes because of bird poo etc.

If the reaction has occurred on top of lacquer (obvious if you run your hand over it) then a cutting compound may remove some, if not all, of the mark. If the reaction is due to the base coat then no amount of compound will help. A bootlid respray is then your only answer.

Most bodyshops should quote around £180-200 +VAT to respray a bootlid in metallic or solid colour. (That would be our normal charge out rate) Flips, Cascades and Pearls would be extra.

rfisher

5,063 posts

312 months

Wednesday 3rd August 2005
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Yes - probably the laquer layer. I had this on my 350i and the paint man said it was damp under the top layer before spraying had been completed.

Has it had a respray in the last few years? If so you may get some joy from the people who did the spray.

morebeanz

Original Poster:

3,283 posts

265 months

Wednesday 3rd August 2005
quotequote all
Thanks for all the suggestions, folks. Sadly it looks like respray time, then, as I have tried all manner of cutting, cleaning, polishing methods and the little bu@#er is still there!

Does make me wonder why it needed a respray though, or if it has happened on the factory paint...

apguy

841 posts

277 months

Wednesday 3rd August 2005
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It can happen under the original paint. Fibreglass is porous and therefore water can leech through (Osmosis). TVR currently use an MS high build primer with an inhibitor additive before painting the cars which mostly prevents this from happening.

CERBONE

37 posts

258 months

Wednesday 3rd August 2005
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I would say that the problem is in the PPG Matting that was used in the boot lid. If the matting is of old stock is has a tendency to 'ball-up' and 'bird-nest'. The factory use a filler to disguise the problem I believe that this can effect certain paint finishes. Obviously any way to remedy, as described by others is a bonus.

morebeanz

Original Poster:

3,283 posts

265 months

Thursday 4th August 2005
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If it is the matting, does this mean it is un sprayable, in terms of fixing the look? Or just that it may return again after being done?

I can see a new boot lid coming on now!

Wildfire

9,948 posts

281 months

Thursday 4th August 2005
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Sounds like bird lime damage that's been left on.