Sound Deadening

Rixio · April 16, 2006, 04:01:27 PM

Im planning on sound deadening my car this week. Does anyone know how many sq/ft id need to do the boot panels and doors? Also been looking at Dynamat and its fooking expensive! Some guys on the US forums have used plumbers sound deadening rolls apparently any of you guys know what they mean?

Fish · April 16, 2006, 04:13:05 PM

From memory you can get a cheaper version of brown bread from places like Maplins. Might be worth a look.

Fish

RAW · April 16, 2006, 04:20:30 PM

i got mine off ebay...

http://cgi.ebay.co.uk/30-Sq-Ft-eDead-Original-Sound-Deadening-Dynamat-EDO02_W0QQitemZ9711491881QQcategoryZ1498QQrdZ1QQcmdZViewItem

it\'s seriously sticky stuff and seems to work pretty well. i couldn\'t get to a lot of the doors because of the way they are made but a few big squares on the outer skin plus smaller bits in any space on the inner skin have made a noticable difference.

Rixio · April 16, 2006, 04:28:27 PM

Is 30ft sq enough for the whole car?

TRex · April 16, 2006, 05:22:00 PM

30 should be more than enough.
From memory, I had done one of my Supra\'s with less than half of that. (10 springs to mind)
I guess it depends on what your main purpose of it\'s use is!

I only used it for the heavy music I was installing. Done the 2 doors and the rear panels just behind where those speakers were.
Works great for the music purpose, also makes your doors less prone to dents and nicks. :yes

Rixio · April 16, 2006, 06:31:25 PM

Well its mainly to reduce road & wind noise, i am going to have an install eventually although nothing fancy just a simple component and sub setup

shaunwil · April 17, 2006, 11:04:35 AM

I\'d go for the extreme version of the dynomat, you only need to use 1 layer of it. The brown bread is a bit bigger sheet but it is thin stuff and gives average results. If your doing it with sound in mind then get some wadding as well (looks like santas beard, usually seat padding, but not the foam) this will improve the air charateristics around the speakers.

If your doing the whole car make sure you do the roof, it makes a massive difference to the level of sound.

Plus maplin electronics do digital db meters for 20 quid now so you could do a before and after test to make sure its doing its job !

Shaun

Rixio · April 17, 2006, 01:41:28 PM

Shaun...Dynamat extreme is really expensive and isnt the best Clicky for Comparisons I doubt ill do the roof because its a major headache apparently, il be doing the boot and the doors. Might do the footwells/firewall later on though. What do you mean by wadding & where do you get it?

shaunwil · April 17, 2006, 04:24:31 PM

I was into quite loud systems a while back and i dynamatted the fto roof because my subs where distorting the roof so much it looked more like jelly ! I used 3 rolls of the extreme in the roof line (1 layer) and it completely removed the movement.

I\'ve used brown bread as well for doors and it is pretty good stuff, but is way thinner and you may want to double up around speaker areas.

The results you can create are extremely good. I had a 140 db system in an AXGT that was all dynamatted bar the roof and you could close the doors and chat to somebody at normal level with the system at full chat.

I would go for the thicker stuff around the loudest areas !

Shaun

shaunwil · April 17, 2006, 05:00:02 PM

Just had a good read of the article and i would say that the only issue with the dynamat extreme stuff was the cost of it ! I got 3 rolls for 45 quid when i did my roof. But i\'d won a couple of sound offs with SQ through the said company !

Shaun

shaunwil · April 17, 2006, 05:00:54 PM

oops, i\'ll bring a sample of wadding saturday to the rolling road day, its easier to show you what i mean !

Shaun

Rixio · April 17, 2006, 05:15:37 PM

Coolio, ill probably get some of this eDead stuff for Â£50. If you have a roller can i borrow it please

Rixio

shaunwil · April 17, 2006, 06:19:13 PM

sorry bud i just used a peice of mdf as a scraper to get all the bubbles out.

Where do you get the eDead from? been thinking about putting some around my speakers

Shaun

Rixio · April 17, 2006, 08:21:05 PM

http://cgi.ebay.co.uk/30-Sq-Ft-eDead-Original-Sound-Deadening-Dynamat-EDO02_W0QQitemZ9711491881QQcategoryZ1498QQrdZ1QQcmdZViewItem

Post 3 on this thread

dubber91 · April 18, 2006, 12:29:58 AM

not being funny but sound deadening does nothing for perfomance! ive heard you should take a look at roofing suppliers for cheap alternatives