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baconsdozen
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Joined: 03 Dec 2007 Posts: 1119 Location: Under the car.
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Posted: Mon Sep 23, 2013 12:53 pm Post subject: Stain on paint from tarpaulin. |
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A few days ago I covered my Rover P5b with a blue tarpaulin as a temporary measure while doing some work near ir.
Taking it off a few days later after it had rained acouple of times I was surprised to see some dark blue stains on the silver birch paint. They resisted all washing with shampoo,detergents,cream cleaner,petrol and everything else I could think off but have faded greatly after repeated washing with plain water. Each washing seemed to fade them just a bit more untill they are now very difficult to see.
Has anyone ever come across this ?. _________________ Thirty years selling imperial hand tools for old machinery(Now happily retired). |
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Rick Site Admin
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Joined: 27 Apr 2005 Posts: 22477 Location: UK
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baconsdozen
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Joined: 03 Dec 2007 Posts: 1119 Location: Under the car.
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Roger-hatchy
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Joined: 07 Dec 2007 Posts: 2135 Location: Tiptree, Essex
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Posted: Wed Sep 25, 2013 1:08 pm Post subject: |
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Passed this on to a friend who runs a Valeting and detailing company in Romford.
They do paint correction and rectification
Trades as 'Clean and Gleam' has rectifies some so called hopeless cases before now.
I'll come back to this if and when I get an answer.
Here is his website
If this is OK with Rick, please remove it if it's out of order Rick
http://www.cleanandgleamvaleting.co.uk/ |
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Roger-hatchy
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Joined: 07 Dec 2007 Posts: 2135 Location: Tiptree, Essex
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Posted: Wed Sep 25, 2013 8:40 pm Post subject: |
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Got a message back from Dave.
Said he has come across this before on a MK9 Jaguar.
He said it can be machine polished out. |
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baconsdozen
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Joined: 03 Dec 2007 Posts: 1119 Location: Under the car.
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Posted: Fri Sep 27, 2013 9:30 am Post subject: |
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Thanks or the reply. I tried soaking a chamois leather in water and leaving it pressed flat to the roof on the biggest overnight. In the morning (it was cold and damp overnight) the stain had greatly faded. A repeat performance the following night left the stain virtually invisible.
No,I haven't the faintest idea why it works either. _________________ Thirty years selling imperial hand tools for old machinery(Now happily retired). |
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Roger-hatchy
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Joined: 07 Dec 2007 Posts: 2135 Location: Tiptree, Essex
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Posted: Fri Sep 27, 2013 10:06 am Post subject: |
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That's interesting, I'll pass it on to dave for a comment. |
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Desert Fox
Joined: 21 May 2013 Posts: 25 Location: Leeds
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Posted: Mon Oct 21, 2013 5:32 pm Post subject: |
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baconsdozen wrote: | Thanks or the reply. I tried soaking a chamois leather in water and leaving it pressed flat to the roof on the biggest overnight. In the morning (it was cold and damp overnight) the stain had greatly faded. A repeat performance the following night left the stain virtually invisible.
No,I haven't the faintest idea why it works either. |
It will come back eventually despite polishing. This happens if plastic covers are used and is usually the paint pigments breaking down under damp / cold conditions and chemicals leeching from the plastic. The final remedy is a re-paint. I think that non-PU solid colours (without clear coat) are more susceptable
This is why you should never wrap freshly painted parts in bubble wrap as the solvents attack the plastic which then stains the paint. |
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