Factory sound deadener

Topic: Factory sound deadener (Read 5140 times) previous topic - next topic

Factory sound deadener

February 10, 2008, 05:37:23 PM

So, this rubbery, gooey, tar like mat underneath my carpet... Is this supposed to be sound deadening material? I am putting dynamat in the 'bird so I want to pull it out to make sure I get maximum dynamat-to-metal contact. Thoughts?

Factory sound deadener

Reply #1 – February 10, 2008, 06:09:49 PM

enjoy! its messy and a PITA.

i hear the dry ice helps. i only pulled the loose stuff outta mine so far. ill worry about the rest later

Factory sound deadener

Reply #2 – February 10, 2008, 06:28:07 PM

A putty knife and about 2-3 hrs.
Had to use a hammer to chisel some of it in places.
You'll also have a sore hand when your done.

I've also thought about putting radiant foil on, before reinstalling the carpet. also under the headliner.

Factory sound deadener

Reply #3 – February 10, 2008, 06:52:42 PM

Radiant foil is a heat barrier? I actually bought fat-mat from eBay (reviews say it's slightly better for sound than dynamat). Dynamat and Fat-Mat both say it also blocks heat... does anyone know how well? My 'bird gets pretty hot; so hot you can barely touch the metal ashtray door! I really want to block a lot of that.

Factory sound deadener

Reply #4 – February 10, 2008, 06:58:23 PM

I've had the ash tray door get smoking hot before too, but only at night when the ash tray light is on.

Factory sound deadener

Reply #5 – February 10, 2008, 08:15:01 PM

I use radiant foil all the time in attics and basp00gets.
I have it in my attic, and it cut the heat in summer up there from 115 deg. to about 75 deg.
Also have it on my garage ceiling. holds heat in like mad. I buy it by the 500' roll.

Eastwood dynamat extreme (foil sided)
http://www.eastwoodco.com/jump.jsp?itemID=14920&itemType=PRODUCT

Factory sound deadener

Reply #6 – February 11, 2008, 10:08:19 PM

Sweet! I wonder if the foil backing on mine will work that way:

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&ih=002&sspagename=STRK%3AMEWN%3AIT&viewitem=&item=120216476835&rd=1

If not, where can I get a small amount? I've only seen it in 1000' quantities...

Factory sound deadener

Reply #7 – February 11, 2008, 10:28:33 PM

This is the place I get my foil from
http://www.radiantguard.com/
I'll check to see if I have any other places with less in a roll.
I'm guessing just for the floor you would need about 5'x8' or mabe 10'

Factory sound deadener

Reply #8 – February 11, 2008, 11:40:52 PM

How much comes in that bulk pack? I wanted to do my car but that stuff is always like $60 for a door kit so I always thought it would be way too expensive to do it but that price is not too bad.

Factory sound deadener

Reply #9 – February 11, 2008, 11:46:53 PM

yes, I was reading the specs on the fat mat. It has a decent amount of foil in it.
That will reflect the heat back out or in for that matter. It will also help in the cooling too (air cond.)

If you want maximum heat reflection find some foil at a home improvement store, or mabe a insulating contractor with some extra. Do above the headliner and behind your back seat that goes into the trunk.

Factory sound deadener

Reply #10 – February 12, 2008, 12:06:23 AM

Bulk pack has enough to do most of the car. I'm going to do a layer on the inside of the outer shell of the door (maybe dbl behind the speaker), followed by a 1/4" layer of closed cell foam and a layer of fatmat on the inner shell (just behind the door panel). Also will do the firewall and floor (not sure how much yet) and trunk... I'll let you all know how far it goes. Not doing the headliner yet, nor with this stuff cause I guess it could come off... gonna get something better for up there... but later...

I do definitely want max heat reflection, espeically while I have everything torn out. Driving today was interesting... just a shell and a seat. The entire floor panel was hot to the touch... no wonder I sweat to death in the summer!! So I want to keep that out and minimze how high I need to have the AC (whenever I get it reconnected and charged!!). Maybe I'll try craigslist for some extra foil...

Factory sound deadener

Reply #11 – February 12, 2008, 10:51:24 AM

Hey Jerry, how thick is that radiant foil? I'm trying to assess whether or not I need it by Thursday, I'd like to compare to the fatmat backing. I'm actually thinking I'm going to do a dbl layer of the foil backed fatmat on the firewall and floor now, so that may be enough.

Factory sound deadener

Reply #12 – February 12, 2008, 10:58:49 AM

that shiznit is what gave me bloody knuckles, but it was surprising how heavy that stuff is.

Factory sound deadener

Reply #13 – February 12, 2008, 11:42:44 AM

What is, the fatmat/dynamat stuff or the radiant foil?

Factory sound deadener

Reply #14 – February 12, 2008, 01:08:34 PM

Brett,
The radiant foil that I use is double sided 5 mil.
You could use spray adhesive on it if you had to
If you use it on top of insulation surfaces, use a perforated foil.
If you use it under, you can use solid foil