Topic: firewall sound proofing


j.grif    -- 02-09-2011 @ 9:39 AM
  What would be best material for firewall insulation?
Felt material or the bubble type sound proofing??
Thanks


39 Ken    -- 02-09-2011 @ 10:02 AM
  I used 1/2" closed cell foam that the heating & air conditioning outfits use. It deadens the noise, insulates the heat, and doesn't absorb moisture. Ken


j.grif    -- 02-09-2011 @ 5:46 PM
  Thanks Ken-I will see if I can find some


alanwoodieman    -- 02-09-2011 @ 5:58 PM
  I also used closed cell foam and it deterioted in about 5 years to a mushy substance, since then I have used the foil lined bubble insulation that I get at Lowes-2 layers for the firewall and one under the floor mat, I also glued it into the cab roof, walls, doors, and quarters of my truck, sure soundproofs it!


j.grif    -- 02-09-2011 @ 9:11 PM
  thanks for the info


39 Ken    -- 02-10-2011 @ 3:44 AM
  I went to the garage after reading alanwoodieman's input and checked behind the firewall cover and checked my insulation as described above. No change in mine. It's been there since 1993. I would guess that there is a difference in closed cell foam so my suggestion would be to buy quality and go to a Heating / Air Conditioning dealer to get it. JMO Ken


supereal    -- 02-10-2011 @ 10:25 AM
  C&G has firewall insulation on page 358 of their online catalog www.cgfordparts.com


trjford8    -- 02-10-2011 @ 10:32 AM
  You can also find the closed cell foam with foil backing at swap meets. It comes in a roll for about $30.


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