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-   -   Great Stuff and 6 mil poly vapour barrier (http://www.diychatroom.com/f19/great-stuff-6-mil-poly-vapour-barrier-82641/)

maljeff 09-29-2010 02:03 PM

Great Stuff and 6 mil poly vapour barrier
 
Does anyone know if Great Stuff can come in permanent contact with a 6 mil poly vapour barrier and not eat away at it or damage it? I called Dow and they said "it shouldn't" but I typically don't like/trust "it shouldn't" as an answer.

jklingel 09-30-2010 02:19 AM

I've gotten GS on poly several times, as spill-over, and it did not do anything but dry. Some of that sat around for years before I got back to it and cut the poly off; the GS was just sitting there. So, I guess my answer is "It shouldn't". :laughing::laughing:

littlecleo 09-30-2010 09:27 AM

Quote:

Originally Posted by jklingel (Post 509161)
I've gotten GS on poly several times, as spill-over, and it did not do anything but dry. Some of that sat around for years before I got back to it and cut the poly off; the GS was just sitting there. So, I guess my answer is "It shouldn't". :laughing::laughing:

I've had the same results

maljeff 09-30-2010 11:59 AM

Thanks for the info, much appreciated.

I have one more question I'm hoping you can help me with. I have some polystyrene insulation glued to my interior basement walls. I noticed that a few of the panels have a few small holes in them - not sure what from as I'm not the original owner. Can I fill those holes with GS?

thanks

jklingel 09-30-2010 01:26 PM

do a test zap somewhere to see if you have any dissolving issues. if not, fill 'em in. j


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