Polyfil vs Closed cell foam vs gym socks. Sound deadening question, yay!

[brodeisel 10+ year member]

I

 

[Suicide Bobb 5,000+ posts]

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Btw, I'm not paid to advertise for Don or anything.

 

[kmanian 5,000+ posts]

First of all there is science behind not using Peel and Seal. Im not going to get into it, its been beaten to death in recent weeks.
Deadener is used to change resonant frequency of a panel causing less vibrations. If you want to stop rattles between panels then closed cell foam (CCF) is the proper item to use. If you want to keep sound in and road noise out mass loaded vinyl (MLV) is the proper item. Its that simple.

Except EPDM isnt mass loaded and memory foam mattress material is a poly foam and isnt closed cell.

But if the shoe fits! it is a cheap alternative, and it works. You may not like it, but it does work.

 

[whitedragon551 5,000+ posts]

But if the shoe fits! it is a cheap alternative, and it works. You may not like it, but it does work.

OP screw the science behind it. Peel & Seal will work great.

 

[kmanian 5,000+ posts]

First of all there is science behind not using Peel and Seal. Im not going to get into it, its been beaten to death in recent weeks.
Deadener is used to change resonant frequency of a panel causing less vibrations. If you want to stop rattles between panels then closed cell foam (CCF) is the proper item to use. If you want to keep sound in and road noise out mass loaded vinyl (MLV) is the proper item. Its that simple.

It doesnt work. The science behind it proves otherwise. For a cheapo idea Peel & Seal works as well, but in reality it doesnt.
Use anything but closed cell foam in a door panel. When it holds moisture and electrical components rust and speakers get wet you know why.

reading > you? he stated in his OP that there would be no moisture in the area.

 

[whitedragon551 5,000+ posts]

you are an idiot, he was not asking about the peel and seal, and I never refered to peel and seal.

LOL. You are the one who referred to using a product that wasnt intended for this job, so I followed your lead and recommended peel and seal because its obviously going to work.