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Old 10-22-2009, 09:14 AM   #1
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How do I paint sheet metal/duct?


As in this thread, I have a hole I will be covering up with a piece of sheet metal. I would like to paint the sheet metal, as well as the duct.

I tried using vinegar to etch, then using a latex primer, but it scratches off very easily.

Should I be using a spray paint? Any ideas?

Thanks

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Old 10-22-2009, 09:21 AM   #2
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How do I paint sheet metal/duct?


You shouldn't have a problem if you use a nice thick bonding, stain blocking, latex primer like Benjamin Moore or MAB Superbond (will stick nicely to just about anything but plastic). If you can get it where you live, you might be better off with an oil-based primer on metal but again, get a good one like Benjamin Moore Fresh Start or a paint store recommend specifically for metal but alkyd in chemistry so that it will take latex as a finish coat (unless you plan to use oil for it).


Last edited by user1007; 10-22-2009 at 09:25 AM.
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Old 10-22-2009, 11:15 AM   #3
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How do I paint sheet metal/duct?


And just to give you some more choices, SW's All Surface and Zinsser Bullseye 123 are formulated for galvanized. But did you correct the duct problem?
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Old 10-22-2009, 03:00 PM   #4
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How do I paint sheet metal/duct?


you can also use the Sherwin Williams pro industrial pro-cryl latex primer with any latex topcoat. this stuff is amazing, one of the best rust inhibiting primers i have ever used.
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Old 10-22-2009, 03:00 PM   #5
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How do I paint sheet metal/duct?


ohh and i forgot to mention it is very costly but worth it if you want it to last a lifetime
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Old 10-22-2009, 03:45 PM   #6
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How do I paint sheet metal/duct?


Use a good bonding primer, then you can top coat with an acrylic or you can save a step and use DTM primer/finish which you can get at sherwin williams. DTM is direct to metal. Procryl is also great stuff from Sherwin Williams.
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Old 10-23-2009, 07:34 AM   #7
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How do I paint sheet metal/duct?


i used some 1-2-3 and i'll let that cure for as long as possible. i scratched a bit by accident an hour after and it came off, but i'll let it dry more.

thanks all
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Old 10-23-2009, 11:52 PM   #8
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How do I paint sheet metal/duct?


I don't know much about house paint on metal but scuffing up the metal with a sanding disc or something would help it stick. Some 60 or 80 grit would probably work ok.
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Old 10-24-2009, 08:58 AM   #9
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How do I paint sheet metal/duct?


Quote:
Originally Posted by housepaintingny View Post
or you can save a step and use DTM primer/finish which you can get at sherwin williams. DTM is direct to metal.
We have a winner. DTM is what you wat to use.

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