dgmorr29

I've read the sticky, but it doesn't mention the ghetto way.

Has anyone tried fiberglass insulation? In the doors, under the carpents, behind the panels, etc. I've done fire proof fiber glass insulation in my motorcycle muffler, and it reduced the noise by a huge amount. Just wondering if there are any benefits or drawbacks doing it in a car for audio purposes?

imported_loudsubz

its not the same, to sound deaden you want to add "mass" to the metal so it doesn't resonant as easily, so you would be looking at a heavy sticky substance, like rubberized undercoating to spray on the metal, but it smells.

bbarbulo

iTrader: (2)

there is this roof asphalt aluminized foil.... I dunno... it comes in rolls and it works really well I think.

imported_meSIR

my main concern would be with the vibration in a car, i dont know if i'd want fiberglass escaping out cracks anywhere and floating around in my nose

dgmorr29

These are all good points. I painted most of the interior with the rubberized spray. I did it more for preventitive maintenence (read: ruse). Even though the coating is basically less than 1mm thin in most areas, does that help the deadening at all?

Whiplash

cheap alternative is blue back..(roofing stuff, home depot)
imo, brown bread is the best bang for the buck..

btw, yes, somewhat but not nearly what you'll get from something with some weight..

also, i have heard of other materials used similar to what you mentioned but more for gap filling, like under panels etc..try maybe dacron?? or something less invasive than glass...dead air can be a good anti-vibrational tool too

imported_Chadwa

You can also use a can or two of mono foam thickens up nicely I have a can in my trunk lid and two cans in each side panel of my trunk. It takes a while to cure but is a cheap way of doing it probably about a 50 dollar job for all the supplies

dgmorr29

Didn't people conclude that it is the weight that reduces the resonance? I was thinking of that foam, but it is light.

imported_Chadwa

The foam thickens up and makes the part solid not hollow it just changes the resonant frequency

imported_loudsubz

the foam is ok, just make sure its low expansion, or else you panels could bulge and would look stupid on the outside.

$50 is alot, you could almost buy enough deadning for the same price. Foam can only do so much, if you have a door panel the only way is to add deadning, as foam will interfere with the window operation etc, so there is + and - to it

Whiplash

ya, i'd use foam to reduce panel vibrations (like rear deck) but not much else..filling large cavities maybe but then again that takes away volume so...

imported_Chadwa

yeah definatley not for door panels just for the side panels in the trunk but its just an alternative

slow_dx

Do you like it better than eDead v3? A gallon is $50 US, and should be enough to do a civic, right? I'm Looking for some sound deadening...

Whiplash

got a link??
obviously it's a paint on right?? (sorry have never tried it)

would depend on thickness of coat and elasticity of layer applied to an extent as well..
the one advantage i see tho is it would be easier to achieve complete coverage than sheet form, but then again you'd be doing multiple layers to get the thickness of let's say bread, and it COULD make one bitch of a mess using either a brush or roller

sounds like something i'd like to experiment with..
as a last resort a combination of both types could be used, and would probably out-do one or the other..

slow_dx

http://edesignaudio.com/product.php?...pid=26&cur=USD

Was planning on using mats over the doors to seal up the gaps in the panel, and this stuff on everything else.

Whiplash

looks interesting..
if ya get it lemme by a small bit off ya for experimenting with....

imported_Calume

Where do you get brown bread? I tried that home depot stuff. Mini Pro Guard....doesn't stick very well. 50 bucks for a huge roll. meh....I'm not too pleased with it. it works well untill it falls off....

Used it on my trunk lid and trunk floor