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Registered
Join Date: Dec 2004
Location: Montgomery, AL
Posts: 689
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POR-15 topcoat primer
I know that a lot of discussions about POR-15 have filled the archives and I've search and read a lot of these. I've painted my recently installed suspension pan w/ POR-15 with the impression that I could just put the Stoneguard on top of the cured POR-15. Obviously, I didn't do my homework as the company indicates that other primers can be used over tacky POR-15, but once hardened, I must use their Tie-Coat or Self-etching primers.
I was hoping to get this done this weekend and not have to wait another week to get in their special primers. My question is has anyone found a primer that I can buy off the shelf that works on cured POR?
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Steve B. 1972 911t 1999 328is |
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07-21-2007, 07:51 AM
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Slumlord
Join Date: May 2001
Location: Canada
Posts: 4,983
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You could scuff sand it and then stonegaurd it, otherwise the POR is too smooth for anything to adhere to.
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84 Cab - sold! 89 Cab - not quite done 90C4 - winter beater |
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07-21-2007, 07:54 AM
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Join Date: Jan 2001
Location: So. Cal.
Posts: 9,115
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+1 Just rough up the finish and paint it.
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Marv Evans '69 911E |
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07-21-2007, 09:44 AM
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Location: Montgomery, AL
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Thanks for the input.
I had thought about sanding the surface, but I wasn't sure if there wasn't something fundamentally incompatable between the two "paints" or if the primer just provided some tooth for the stoneguard to bite into. I am pretty naive about paints and finishes and there seems to be a million opinions on the forum.
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Steve B. 1972 911t 1999 328is |
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07-21-2007, 04:51 PM
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Unsafe at any speed
Join Date: Feb 2001
Location: East of Seattle
Posts: 662
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Duplicolor Self-Etching primer for 7$/can at NAPA seems to have held on to cured POR-15 on my projects.
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87 Carrera Coupe |
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07-21-2007, 10:22 PM
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Registered
Join Date: Dec 2004
Location: Montgomery, AL
Posts: 689
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Nader-
I got a couple of cans of the dupicolor self-etching primer and used it for my suspension pan and gas tank. Thanks for the suggestion. I used some 120 grit sandpaper to rough it up a bit and it looks like I got good adhesion. I managed to get my Stoneguard sprayed on by the end of the day.
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Steve B. 1972 911t 1999 328is |
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07-23-2007, 04:44 AM
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