All of these are open and airy enough to adequately interact with the sound waves in the sealed wall or ceiling cavity.
Open cell spray foam insulation soundproofing.
However i prefer a 1 inch thick square foot price.
Is less expensive than closed cell.
The main thing you should know is that the principal use for spray foam is creating insulation.
There are several types of insulation foam that you may use to create a thicker barrier between rooms and floors to reduce noise but know that sound deadening is not the main goal when it comes to using this type of foam.
The sound blocking ability can be compromised over time.
It is also less temperature sensitive than the open cell spray.
Why open cell oc spray foam is best for sound attenuation.
Foam it green 1202 class 1 open cell spray foam kit is a diy product that allows you to add acoustic value to any wall ceiling or floor.
The kit produces an excellent thermal barrier plus an air moisture and sound barrier.
However in real construction a batt would be cut to fit around utilities and boxes leaving sound transfer cracks.
Open or closed cell foam is a common consideration but not appropriate for soundproofing.
For damping the resonance in the air cavity we prefer medium density fiberglass cellulose cotton mineral fiber or polyester.
Some places give the cost per board foot and others by square foot at r 1.
Spray foam insulation cost open cell polyurethane spray foam.
However to help you find.