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Old 07-23-2011, 12:00 PM
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What to do to cover POR-15

Hey gang,

I'm finally stripping off the original paint on the interior of my 69' Javelin. I'm just trying to determine what to do afterwards. Currently I'm not touching the areas with seem sealer yet. The other areas that I have already finished stripping, I'v painted over the bare metal with POR-15. I'm just wondering if should..

A.) go over the por-15 with a bedliner type covering?
or
B.) just leave the por-15 then do a dyna-mat type insulation?

As for the seam sealer areas, i'm using 3m's brushable seam sealer to replace the original stuff, and was wondering if I should.

A.) apply it over the bare metal then paint over with the por-15?
or
B.) paint the por-15 first then apply the seam sealer over afterwards?

Any hints or suggestions would be appreciated. Thanks guys!

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Old 07-23-2011, 12:36 PM
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Moving to body/exterior..more appropriate there..

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Old 07-23-2011, 02:11 PM
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There's a gazillion posts about POR-15 on this site, pros and cons. The MOST important is using the product properly and going with the instruction. POR can be used as a covering but will fade after a time. Scuffing it down, using an epoxy primer over it before painting would probably be my choice, If I am wrong someone will chime in. If you're going to cover with an insulator, just cover it, the stuff is tough and if properly applied, shouldn't lift. As far as seams go, I wouldn't use POR, seam sealer should suffice, perhaps an epoxy primer before sealing, and like I said before, if this is wrong, we'll hear about that soon. POR is ok in some instances but is over-rated for everything, too much will cause headaches. Use it sparingly.
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Old 07-23-2011, 08:54 PM
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I have done what you are doing to the interior side of the floor pan on a VW Beetle. No problems after six years. POR-15 will fade when exposed to sunlight. If it is used on an interior, and covered with DynaMat, carpet, door panels or otherwise not exposed to continuous long term sunlight, you will have no issues with it. Even if it does fade, the integrity of the coating is not affected. The areas that are exposed to sunlight can be overcoated with just about any product . Follow the POR directions for applying the product and subsequently overcoating it if you desire and you will have no issues.
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Old 07-23-2011, 11:27 PM
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Cucumber, should I still use the seam sealer over the por-15 or under, or do I still need to use it, with this paint?
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Old 07-24-2011, 04:35 AM
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See the main reason why I'm going with por-15 is, here in Hawaii the humidity is brutal at times. That's why I want something that'll stop the rust in it's tracks and protect the bare metal.

But I was wondering, por-15 is very pliable is it? So would going with a epoxy primer be a better bet, then go over that with a sound deadner, like dynamat or a bedliner type material?
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Old 07-24-2011, 08:55 AM
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Quote:
Originally Posted by Javelin69
See the main reason why I'm going with por-15 is, here in Hawaii the humidity is brutal at times. That's why I want something that'll stop the rust in it's tracks and protect the bare metal.

But I was wondering, por-15 is very pliable is it? So would going with a epoxy primer be a better bet, then go over that with a sound deadner, like dynamat or a bedliner type material?
SPI epoxy over sand blasted bare metal is the best protection you can apply.
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