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Old 10-05-2011, 11:52 AM   #1
Mike K
 
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Butyl caulk alright on wire insulation?


I'm sealing all the wire holes in my attic before re-insulating. I would like to use up all my left over tubes of caulk before buying new. I figure silicone and acrylic caulks are fine for this purpose and wont soften or deteriorate the wire insulation. But Just wondering if Butyl caulks are alright and wont break down the plastic insulation on the wires.

Anyone?

Thanks before hand
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Old 10-05-2011, 12:13 PM   #2
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Butyl caulk alright on wire insulation?


Is this getting inspected? You may need to use an "approved" fire rated caulking to seal the holes.

There shouldn't be any problems with the cables coming in contact with any ordinary sealant used in a household.
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Old 10-05-2011, 12:21 PM   #3
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Butyl caulk alright on wire insulation?


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Originally Posted by AandPDan View Post
Is this getting inspected? You may need to use an "approved" fire rated caulking to seal the holes.

There shouldn't be any problems with the cables coming in contact with any ordinary sealant used in a household.
Most place I know when they are getting strict with it espcally with inspectors they will useally required approved fire rated chalking that useally in red in colour.

For plain jane sealent some willbe ok and some are not all depending on what type it is.

Merci,
Marc
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Old 10-05-2011, 04:34 PM   #4
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Butyl caulk alright on wire insulation?


No Inspection. I'm the home owner who removed cellulose, and will install R49 blown fiberglass.

This is the stuff I have allot of.

http://www.tbpconverting.com/product...mer-511-us.pdf

Its for metal roofs and sika told me its never been tested with electrical wiring.

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For plain jane sealent some will be ok and some are not all depending on what type it is.

Merci,
Marc
Which type isnt OK with wiring?
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Old 10-05-2011, 04:44 PM   #5
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Butyl caulk alright on wire insulation?


use foam,save the caulk for the metal roof like its made for
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Old 10-05-2011, 05:00 PM   #6
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Butyl caulk alright on wire insulation?


....or just go buy some fire caulking and do it right and then you won't have to worry if it'll hurt the wires or not!

DM
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Old 10-05-2011, 06:12 PM   #7
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....or just go buy some fire caulking and do it right and then you won't have to worry if it'll hurt the wires or not!

DM
Good plan.. The heat in the attic must have been getting to me when I considered being cheap.
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