1 registered members (Mickael),
306
guests, and 2
spiders. |
Key:
Admin,
Global Mod,
Mod
|
|
Forums69
Topics113,873
Posts1,343,466
Members1,596
|
Most Online731 Jan 14th, 2020
|
|
|
Re: Sound deadening
[Re: ]
#1172813
17/02/2011 23:02
17/02/2011 23:02
|
Per
Unregistered
|
Per
Unregistered
|
I wouldn't dare recommending things but yes this is what I used and it got pretty silent!
|
|
|
Re: Sound deadening
[Re: ]
#1172925
18/02/2011 10:20
18/02/2011 10:20
|
spookly
Unregistered
|
spookly
Unregistered
|
I just installed new speakers and put flashing tape in all round. Does provide some improvement in sound deadening... possibly not as much as proper stuff, but then it only cost £15 and I've got 1/3 left over.
|
|
|
Re: Sound deadening
[Re: ]
#1180942
05/03/2011 16:56
05/03/2011 16:56
|
Jef_uk
Unregistered
|
Jef_uk
Unregistered
|
Sensible + points It's closed cell and does not soak up water. It's quite dense so has a good ability to cut noise.
|
|
|
Re: Sound deadening
[Re: ]
#1183592
10/03/2011 19:36
10/03/2011 19:36
|
Johnny
Unregistered
|
Johnny
Unregistered
|
I think they sell them in the pound shop and would make the floor nice and soft
|
|
|
Re: Sound deadening
[Re: ]
#1189326
22/03/2011 13:30
22/03/2011 13:30
|
Joined: Jun 2009
Posts: 1,678 Warwickshire
gj88
My life on the forum
|
My life on the forum
Joined: Jun 2009
Posts: 1,678
Warwickshire
|
To revive this thread, I'm doing this sometime this week hopefully. Having read through this thread I'm none the wiser.
From what I can gather, flashing tape will reduce vibration of panels. If this is the case, why is it being used as sound deadening? It looks too thin? Dynamat has been said to be too expensive for the results you get but I'm not seeing a viable alternative from what I've read so far, unless I've got flashing tape all wrong?
What definitive product should I use to reduce noise inside the car? I'll be applying whatever material I go for to the roof, door cards, rear panels, under the rear seat and the floor pan.
----------------------------------------
ETA - Having just seen the price of dynamat they can jog on!
Last edited by gj88; 22/03/2011 13:57.
|
|
|
Re: Sound deadening
[Re: ]
#1189388
22/03/2011 15:57
22/03/2011 15:57
|
Joined: Aug 2000
Posts: 9,729 Zele, Belgium
Kayjey
Club Member #10
|
Club Member #10
Je suis un Coupé
Joined: Aug 2000
Posts: 9,729
Zele, Belgium
|
Flashing tape reduces or kills resonance, which is a source of noise in itself. And yes it's thin, but it's better than just a 0.2 mm sheet of tin or plastic. There are however plenty of materials to choose from, and there are indeed cheaper brands than dynamat. Do a search for "Peel & Seal". These come up as good alternatives as well: http://www.mcmaster.com/#9709t39/=bjlpmjhttp://www.edesignaudio.com/index.php?cPath=1_24http://www.b-quiet.com/vcomp.html (lcomp was supposed to be slightly better but contains leadwhich has risen very much in price) All those mats are mostly just bitumen so not very different from regular roofing material. Without the gravely layer. The alu foil is meant to get rid of the heat (noise is converted to heat). That's the theory.
- Kayjey -
|
|
|
Re: Sound deadening
[Re: Kayjey]
#1189397
22/03/2011 16:09
22/03/2011 16:09
|
Joined: Jun 2009
Posts: 1,678 Warwickshire
gj88
My life on the forum
|
My life on the forum
Joined: Jun 2009
Posts: 1,678
Warwickshire
|
Flashing tape reduces or kills resonance, which is a source of noise in itself. Yes but does it actually reduce outside noise infiltrating in the cabin, or does it just stop structural noise (which I dont experience with my coupe)?
|
|
|
Re: Sound deadening
[Re: ]
#1189400
22/03/2011 16:13
22/03/2011 16:13
|
Joined: Aug 2000
Posts: 9,729 Zele, Belgium
Kayjey
Club Member #10
|
Club Member #10
Je suis un Coupé
Joined: Aug 2000
Posts: 9,729
Zele, Belgium
|
You'd be surprised. But as a sound absorber it will only stop high-frequency noise (airborne) and stop low-frequency transmitted noise ('parasitic' vibration). Check out the vcomp though, that is quite effectove for low frequencies as well.
- Kayjey -
|
|
|
Re: Sound deadening
[Re: ]
#1189452
22/03/2011 17:57
22/03/2011 17:57
|
Joined: Dec 2005
Posts: 2,180 Havant, Hampshire.
OO7
Competition Level
|
Competition Level
Joined: Dec 2005
Posts: 2,180
Havant, Hampshire.
|
Like I said if you have a read of this it breaks it down for you. http://www.sounddeadenershowdown.com/cgi-bin/index.cgi Flashing tape would be what they call the CDL tiles part. Have a look on Ebay for the closed cell foam and Mass Loaded Vinyl. I'm trying to find a cheaper way to do the second and third parts but I'm having no luck.
Last edited by OO7; 22/03/2011 17:58.
|
|
|
Re: Sound deadening
[Re: OO7]
#1189828
23/03/2011 13:43
23/03/2011 13:43
|
Joined: Jul 2007
Posts: 1,833 Brisbane, Australia
Boosted7
My life on the forum
|
My life on the forum
Joined: Jul 2007
Posts: 1,833
Brisbane, Australia
|
That's a great idea, I'd be interested to see how well this works - please report back!
1998 Steel Grey 20V Turbo
|
|
|
Re: Sound deadening
[Re: OO7]
#1190590
24/03/2011 17:06
24/03/2011 17:06
|
Johnny
Unregistered
|
Johnny
Unregistered
|
like I said check out the pound shop for these.
|
|
|
Re: Sound deadening
[Re: OO7]
#1190682
24/03/2011 20:21
24/03/2011 20:21
|
Johnny
Unregistered
|
Johnny
Unregistered
|
The missus has informed me they are closed cell with a smooth surface. Dont know about the thickness though.
|
|
|
Re: Sound deadening
[Re: ]
#1207907
28/04/2011 14:38
28/04/2011 14:38
|
Joined: Feb 2006
Posts: 395 Sweden
Rask
Making a profit
|
Making a profit
Joined: Feb 2006
Posts: 395
Sweden
|
An automotive OEM I have worked for uses Porofib ( http://www.hordastans.se/?articleId=73&lang=UK&topId=6.4) and Lamiflex ( http://www.hordastans.se/?articleId=74&lang=UK&topId=6.4). I believe partially closed cells are the way to go then it comes to foam. The foam business is tricky since not all foam are good sound absorbants. The best bet is to use recycled textile fiber such as Porofib. Got both kinds which I have applied to rear quarter panels and door panels. Need something for structurally borne sound as well though, such as these: http://www.hordastans.se/?articleId=75&lang=UK&topId=6 to sheet metal. For example, under the rear seat. Generally I would recommend a good technical foam or textile fiber applied to the inside of the plastic panels for absorbtion and heavier stuff such as the ones showed in the second link structurally borne sounds for body panels. <edit:> After looking around, bitumen-based heavy layer mats will be the plan for me for body panels, should be readily available in the UK as well.
Last edited by Rask; 28/04/2011 15:35.
|
|
|
|