From: Bob Eilers
email:
Date: 15 Nov 2004
Time: 17:07:55
I just completed a sheet metal patch on the upper cowling of my 46 Champ. A Zeus fastener had worked in the hole and enlarged it to the point it required repair.
Is there anything I need to do to the fresh sheet metal before I try to paint it? From the looks of the new sheet metal, I might have difficulty getting paint to stick.
Painting Sheet metal
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Guest
From: Ron Babos
email:
Date: 15 Nov 2004
Time: 21:03:59
Nate got it right. PPG is a name brand, but any name brand will work. The aluma prep, vinyl wash primers are available at any body shop in your area. If not, don't take your car there.
Use a fine scotchbrite pad(ask your wife for one) and work the aluma prep around for a good clean surface. It's a mild acid, so after cleaning , rinse with clean water and dry. Apply one even coat of vinyl wash as soon as practical with just enough to show its colour.
After that you can use any primer and paint you choose. If you did it right, you'll need a chisel to get the paint off.
Ron
email:
Date: 15 Nov 2004
Time: 21:03:59
Nate got it right. PPG is a name brand, but any name brand will work. The aluma prep, vinyl wash primers are available at any body shop in your area. If not, don't take your car there.
Use a fine scotchbrite pad(ask your wife for one) and work the aluma prep around for a good clean surface. It's a mild acid, so after cleaning , rinse with clean water and dry. Apply one even coat of vinyl wash as soon as practical with just enough to show its colour.
After that you can use any primer and paint you choose. If you did it right, you'll need a chisel to get the paint off.
Ron
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Guest
From: nate schmitz
email: n1045hschmitz@yahoo.com
Date: 15 Nov 2004
Time: 19:16:32
bob, i usually clean the metal very good, then get some aluminium etcher(i use ppg), and then before you prime put down a real thin layer of wash primer( i use ppg for this as well).after this you can prime and paint the metal.
i have been doing it this way and it seems to work very well. e-mail me if you have any more questions.
email: n1045hschmitz@yahoo.com
Date: 15 Nov 2004
Time: 19:16:32
bob, i usually clean the metal very good, then get some aluminium etcher(i use ppg), and then before you prime put down a real thin layer of wash primer( i use ppg for this as well).after this you can prime and paint the metal.
i have been doing it this way and it seems to work very well. e-mail me if you have any more questions.
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dave
painting sheet metal
I usually use alodine on aluminum parts. It acts as an etch, but also has anit corrosin additives like chromates in it. All of the etch solutins are acids, so use sparingly on the surface to be painted and clean up thourally. If you don't and it gets into cracks between other sheets of metal, it can cause corrosion.