Author Topic: Injectable sound proofing??  (Read 8194 times)


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Injectable sound proofing??
« on: March 07, 2006, 08:47:42 PM »
 Do they make an injectable / expanding foam that can be injected into a wall after a small hole is created, and then patched and painted over after the injection is complete? Basically I'm trying to insulate the noise from the master bedroom from my daughters room.

I've seen that can of expanding foam for insulation around wall penatrations, but it's expensive & I don't know if it works well for noise.


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Re: Injectable sound proofing??
« Reply #1 on: March 12, 2006, 11:32:56 PM »
Yes, they make stuff like that, but to fill an entire wall it would cost a fortune.  Better to double up the drywall on both sides to get noise reduction.


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Re: Injectable sound proofing??
« Reply #2 on: April 02, 2006, 04:25:36 PM »
Such expandable foams have been found to make sound transfer though the wall even better, because it removes the airspace and provide larger and easy path for the sound to come through.  

First Rule of soundproofing: "Put something between the source and the target".  (You) Expandable foam would not be the correct material.


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Super Soundproofing Co