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Technical Specifications

MLV Acoustical Barrier Specifications
.75lb 1lb 1.5lb 2lb
Tensile
ASTM D412
600 psi
(4.1 MPa)
600 psi
(4.1 MPa)
600 psi
(4.1 MPa)
600 psi
(4.1 MPa)
Elongation
ASTM D412
125% 125% 125% 125%
Tear Resistance (Die C):
ASTM D412
100 lbf/in
(17.5 kN/m)
100 lbf/in
(17.5 kN/m)
100 lbf/in
(17.5 kN/m)
100 lbf/in
(17.5 kN/m)
Federal Motor Vehicle
Safety Standard (FMVSS):

Standard No. 302
Pass Pass Pass Pass
Surface Finish: Smooth Smooth Smooth Smooth
Back Finish: Smooth Smooth Smooth Smooth
Color: Black Black Black Black
STC 22 26 29 32
Sound Transmission Report

How To Install Mass Loaded Vinyl?

MLV acts as a reflective barrier. The importance is that it contains and blocks the sound from either side of the wall.

When sound waves make contact with a surface, their energy causes vibration. That vibration enlarges and transfers to the air on the other side of the wall.
That is how the sound you hear is relayed. It travels directly through the wall.

How To Install Mass Loaded Vinyl?

Vibrations travel and transfer easily, when the surface is firm, like the wall. If the wall were flexible, or mobile, it would absorb the energy from the vibrations more, and you wouldn't hear as much of the noise being transmitted into the room. However, since walls can’t aren't made to be bendable, MLV is the next best thing. It's flexible and pliable. That means that it will block the vibrations more efficiently, thus preventing the transmission of sound.

The installation of MLV is very straightforward. However, there are some steps that you need to go through to make sure that everything’s done by the book. For best results, it’s recommended that you install it against the studs. Then you can put drywall over it. However, if you don't want to install behind the wall, you can install MLV over your existing drywall.