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Accidental Fading of Paintwork - Scouring

Posted: Sat Sep 08, 2012 6:55 pm
by trufflehunt
Hi

The paintwork on the wing mirrors of my HDI were in a bit of a state, so as a temporary measure I decided
to spray them matt black. I masked everything up, and did the job last night. Took the masking/newspapers
off and admired my handiwork.

Today, I was admiring it again, when I noticed that little tiny black dots, almost invisible unless you looked in the right light, but definitely feelable when I ran my hand over... had drifted on to the glass, and also a little onto the painted door surrounds.

I wondered, how can I get that off. So I got some warm soapy water, and one of those kitchen sponge pads for dushes.
I cleaned off the tiny black spots. But when the water started to dry , the paint seemed to have the gloss taken off.

I just thought that I'd taken the right precautions, and that these pads would not abrade the paint.

Has anyone any direct experience of this, and what they successfully did about it?

A brief glance by an uninterested looker would probably never notice, but I do, and so would anyone giving it more than a casual glance.

The paint code is KRFC, Sherwood Green ( aka British Racing Green ). The C means that rather than lacquered, the paint is a varnished metallic, if that is significant.

Help ?

Just to say... When the paint is wet, when I've run over it with a wet sponge, the paintwork looks fine and shiny. It's only when it dries...'

Re: Accidental Fading of Paintwork - Scouring

Posted: Sat Sep 08, 2012 10:35 pm
by Nightshade
Hmm, I have had something kind of similar when I sprayed some Astra mirrors many moons ago. I put the little lumps down to not flatting the paint between coats. I.e sanding back between light coats.
I'm not sure about the gloss coming off - you've said that your sprayed them matt?? If the finish seems to have changed, it could be that the paint wasn't truly hardened before you washed it, or perhaps a reaction with the soap?
I'd try flatting it right back and spraying again. Good coat of primer, lots of thin layers of colour and flat back between. Lacquer on top.

Re: Accidental Fading of Paintwork - Scouring

Posted: Sat Sep 08, 2012 10:51 pm
by trufflehunt
Nightshade wrote:Hmm, I have had something kind of similar when I sprayed some Astra mirrors many moons ago. I put the little lumps down to not flatting the paint between coats. I.e sanding back between light coats.
I'm not sure about the gloss coming off - you've said that your sprayed them matt?? If the finish seems to have changed, it could be that the paint wasn't truly hardened before you washed it, or perhaps a reaction with the soap?
I'd try flatting it right back and spraying again. Good coat of primer, lots of thin layers of colour and flat back between. Lacquer on top.
Hi

The job I did on the mirrors was excellent. The problem is that some of the spray, drifting in the breeze, went on the windows, and door surrounds. These are what , by using a kitchen pad, I have accidently managed to fade.

As I said, when I wet the green paint, it looks fine, all nice and shiny. What I'm trying to find out, without playing around and possibly compounding my mistake, is whether there is a way to restore the gloss that doesn't involve visits to paint mixing shops, and full blown exercises in panel spraying.

Re: Accidental Fading of Paintwork - Scouring

Posted: Sat Sep 08, 2012 11:44 pm
by Nightshade
Ah! Sorry, I'm with you now bud.

I have no idea why that would happen. I guess my gut reaction would be to try a little t-cut?

Re: Accidental Fading of Paintwork - Scouring

Posted: Sun Sep 09, 2012 9:20 am
by DaiRees
Yup, try t-cut. Should be OK unless you've gone through the laquer.

Re: Accidental Fading of Paintwork - Scouring

Posted: Sun Sep 09, 2012 11:43 am
by trufflehunt
Thanks for that.

TBH, after yesterday I was a bit scared of going anywhere near the paint with anything abrasive.

So earlier this morning, before it got too hot, I delved into my big carbag, where I keep stuff accumulated for ever.
Pulled out a tin of car polish that I haven't used in about 10 years, the kind that requires some effort, and went round the scuffed bits.
They've come up quite well, not perfect if I look close, but pretty much in keeping with the typical state of paintwork on a
car that's seen some life.

When I'm feeling more confident, I'll try the T-Cut on an unobtrusive bit, and see how that goes.

Re: Accidental Fading of Paintwork - Scouring

Posted: Sat Sep 15, 2012 7:27 pm
by midsdaz
Use g3 polish good stuff then get ur self some mer use the g3 to get light scratches out then the mer will just wax ur car with a nice shine

Re: Accidental Fading of Paintwork - Scouring

Posted: Fri Feb 15, 2013 1:54 am
by flyin2wheeler
be very worthwhile to take the car to a car valet centre and ask them to buff the damaged areas
won't cost much,under £40 should cure it
They will machine polish it with some thing like farecla g3 or g6
even have a go your self with T cut and if you manage to buff through the lacquer with T cut...u must have arms like arnie!
I been in car body trade for over 20 years and trust me,if you are doing it by hand,no chance shall u t cut through the lacquer.
You talk about your car having varnish metallic....no.....its base coat and lacquer on your car
varnish would not be allowed near a car,it just would not work
anything metallic finish,for sure...its lacquer
even most solid colour cars after 2k are lacquered
90s cars of solid colour were mainly 2 pack direct gloss finish
hope this helps