prawnabie
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| posted on 18/8/14 at 09:30 PM |
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Painting aluminium
Hi Everyone,
I have a pair of westfield cast ali windscreen uprights that I want to paint black. I have the etch primer and correct topcoat/laquer but am wondering
what I can use to degrease them as they have probably been polished at some point!
I would be grateful for any help!
Thanks
Shaun
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austin man
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| posted on 18/8/14 at 09:34 PM |
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use thinners, panel wipe or similar then put a dust coat onto the ali rather than a wet coat
Life is like a bowl of fruit, funny how all the weird looking ones are left alone
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Smoking Frog
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| posted on 18/8/14 at 09:42 PM |
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Bung them in the dishwasher when no ones looking.
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Theshed
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| posted on 18/8/14 at 09:44 PM |
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Caustic soda - works a treat for pre-treating before anodising
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perksy
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| posted on 18/8/14 at 09:54 PM |
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I flatted mine with some wet & dry and then wiped them with thinners, Applied the etching primer and then the top coat in thin coats built up
slowly.
Really pleased with the finished result, Don't 'polish' the surface of the uprights though as you may have paint adhesion issues.
I removed all the old powder coating first with Nitromors.
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pewe
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| posted on 18/8/14 at 10:24 PM |
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AFAIK Barcoat is the only way to ensure old ali paints well.
Problem is no matter how much you clean or etch there's still the risk of contaminants coming out of it and you won't know until after
you've done all the work.
It's used extensively by Landie owners for that reason.
HTH.
Cheers, Pewe10 
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dave
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| posted on 19/8/14 at 04:32 AM |
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I always ensure the paint and parts are warm before applying the paint.
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