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Old 22-04-2006, 17:54   #1
ThumpJunkie
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Spray paint help - why does it rub off on my hands when I touch it?

Sprayed my interior bits and bobs a while back, but when I touch them the paint rubs off on my hand, and it also chips/scratches very easily. Why is this? Crap paint? Or have I just not painted it right!? I was informed that metallic paint doesn't require lacquer, is this correct?

Going to redo them, anyone have any tips as to how I can avoid the paint rubbing off/chipping this time?
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Old 22-04-2006, 17:56   #2
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Metallic and pearlescent paints DO require lacquer. I suspect the weather has caused the paint to breadown which is why its rubbing off
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Old 22-04-2006, 17:57   #3
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Quote:
Originally Posted by ThumpJunkie
Sprayed my interior bits and bobs a while back, but when I touch them the paint rubs off on my hand, and it also chips/scratches very easily. Why is this? Crap paint? Or have I just not painted it right!? I was informed that metallic paint doesn't require lacquer, is this correct?

Going to redo them, anyone have any tips as to how I can avoid the paint rubbing off/chipping this time?
Quick answer, don't touch the painted bits!!!!

Cheers
Skelo
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Old 22-04-2006, 18:04   #4
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Did you use plastic primer?
You should always laquer metallic and pearlescent paints or they don't become their true colour, not only that the laquer will seal and and give the paint a hard protective surface.
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Old 22-04-2006, 18:10   #5
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Quote:
Originally Posted by troy.mclure
Metallic and pearlescent paints DO require lacquer. I suspect the weather has caused the paint to breadown which is why its rubbing off
The weather in my interior...???
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Old 22-04-2006, 18:13   #6
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Talking

Oh yeah! Lol!! Thats what I get for replying while Im watching the football!

Anyway, like whats been said, the paint has degraded becasue of the lack of lacquer which acts as a protector.
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Old 22-04-2006, 18:14   #7
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Quote:
Originally Posted by ashy
Did you use plastic primer?
You should always laquer metallic and pearlescent paints or they don't become their true colour, not only that the laquer will seal and and give the paint a hard protective surface.
Yeah I did mate.

How do I apply the lacquer? It didn't go on well the last time, so I re-stripped the parts and did them again. It says on the tin that you've to sand it down before applying it, but wouldn't that defeat the purpose?
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Old 22-04-2006, 18:28   #8
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When it says sand down it means just to matt it.
TBH it's not necessary if you do it while the paint is still not set. I wait about half an hour before putting the laquer on and never had problems yet.

With laquer you need to apply it in sweeps. Press the trigger about 8-10 inches away and do a sweep from left to right or right to left and back the opposite way. Let of the trigger in between sweeps, this prevents overlap causing it to run.
Give it a wet coat and leave it for a few mins then hit it with a hairdryer on a low heat setting for another few minutes. This will give the laquer a mirror finish. Let it cool and then do another coat, but straight after applying the coat hit it with the hairdryer on a low setting again.
Let it cool and then same again.

After about 3-4 coats and the hairdryer you should have a mirror finish.
Then let it dry properly and you should be sorted.

Done it this way loads of times without problem. HTH.
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Old 22-04-2006, 18:32   #9
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Quote:
Originally Posted by ashy
When it says sand down it means just to matt it.
TBH it's not necessary if you do it while the paint is still not set. I wait about half an hour before putting the laquer on and never had problems yet.

With laquer you need to apply it in sweeps. Press the trigger about 8-10 inches away and do a sweep from left to right or right to left and back the opposite way. Let of the trigger in between sweeps, this prevents overlap causing it to run.
Give it a wet coat and leave it for a few mins then hit it with a hairdryer on a low heat setting for another few minutes. This will give the laquer a mirror finish. Let it cool and then do another coat, but straight after applying the coat hit it with the hairdryer on a low setting again.
Let it cool and then same again.

After about 3-4 coats and the hairdryer you should have a mirror finish.
Then let it dry properly and you should be sorted.

Done it this way loads of times without problem. HTH.
Nice one Ashmeister

So it's best to apply the lacquer whilst the paint is still tacky?
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Old 22-04-2006, 18:36   #10
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Not actually tacky, but as long as the paint hasn't set hard should be fine.
If you use the hairdryer to cure the paint coats then I'd say after half an hour you will be able to start applying the laquer.

Oh, one other tip: Put the can in warm to hot water before spraying and in between coats of laquer. This will make it spray much better and prevent spotting.

Last edited by ashy; 22-04-2006 at 18:42.
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Old 22-04-2006, 18:49   #11
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Quote:
Originally Posted by ashy
Not actually tacky, but as long as the paint hasn't set hard should be fine.
If you use the hairdryer to cure the paint coats then I'd say after half an hour you will be able to start applying the laquer.

Oh, one other tip: Put the can in warm to hot water before spraying and in between coats of laquer. This will make it spray much better and prevent spotting.
I don't have access to an electrical point in my garage...
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Old 22-04-2006, 18:53   #12
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Originally Posted by ThumpJunkie
I don't have access to an electrical point in my garage...
Can you run an extension cable from anywhere?
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Old 22-04-2006, 18:56   #13
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Quote:
Originally Posted by ThumpJunkie
I don't have access to an electrical point in my garage...
just hack into the nearest lampost u'll be fine, but were rubber boots though just incase you get a small shock.

or long extension lead
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Old 22-04-2006, 19:05   #14
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Originally Posted by ThumpJunkie
I don't have access to an electrical point in my garage...
Go out and buy a 15 metre extension you tightwad...lol.
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Old 22-04-2006, 19:18   #15
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15metres? I think not... it's a council garage 200 yards away!
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