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Old 08-16-2012, 12:05 PM   #1
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Really flexible gap filling sealant


Hi,

Im trying to track down a product that was used over 10 years ago on an install in my home. No idea what it was, just know what it looks like now.





It is highly elastic/rubbery, but it is not really workable, it is like it cured into the shape that you see it in here, which was the shape that sealed a 3/4-1" gap between siding and a metal case on my home. It flexes fine, and is elastic so it returns to shape for the most part. It is soft stuff, but it doesnt have the workability characteristic of a duct seal type product. having removed it, it looks like the installers masked off the lines, applied it and then worked it into a nice crescent shape on the outside. So Id imagine it is a curing product.

I'm wondering if it is butyl or polyurethane? It filled a wide gap without any backer, stayed clean living outdoors, and kept real flexible.
Any ideas? What would I want to use and who is the best manufacturer/product? Where is the best place to buy???

Im talking about sealing the gap with my AC in another thread on this site, but Im still interested in what this specific product might be, so any info would be great.
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Old 08-16-2012, 12:40 PM   #2
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Really flexible gap filling sealant


Is there a real electrical supply near you? Graybar, W. W. Granger ect.?
I'm thinking of the flat tape they sell for sealing around the tops of meter bases when the wire comes in from the top.
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Old 08-16-2012, 01:00 PM   #3
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Really flexible gap filling sealant


Sure is. Do you think it is like ductseal but on a tape with an adhesive? I guess one of my concerns about using duct seal for my application is its ability to tenaciously stick and flex as metal parts expand and contract...

Thanks again for your responses!
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Old 08-16-2012, 10:02 PM   #4
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Really flexible gap filling sealant


If I try to use ductseal, do you think it is viable to mask straight lines, work it smooth, and then pull the tape to have smooth lines?
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Old 08-16-2012, 10:05 PM   #5
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Really flexible gap filling sealant


I've never worked with duct seal tape so I'm not sure.
The most important part is the top so why not just try it there and see what happens.
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Old 08-17-2012, 02:22 AM   #6
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Really flexible gap filling sealant


Take the sample with you to a real electrical supply and a real hvac supply house and see what you come up with.
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Old 08-17-2012, 06:47 AM   #7
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Really flexible gap filling sealant


They sell bricks of that stuff at Home Depot as well in the electrical aisle.
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Old 08-17-2012, 07:24 AM   #8
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Really flexible gap filling sealant


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Originally Posted by Windows on Wash View Post
They sell bricks of that stuff at Home Depot as well in the electrical aisle.
Not the same stuff. The bricks are made of duct seal while this stuff actually Cuyler's into a specific shape and is less workable. I may just be stuck using duct seal anyway.
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