Super Soundproofing Community Forum

Soundproofing Forum Topics => Acoustical Questions? Ask here about Sound absorbsion, Reflection, ETC => Topic started by: lionlion on May 28, 2012, 05:27:33 AM

Title: Composition of Mass Loaded Vinyl and its properties?
Post by: lionlion on May 28, 2012, 05:27:33 AM
A friend asked me about my soundproofed door, because he wanted to do some soundproofing, and what was the composition of the vinyl that made it so dense.  Actually, I couldn't answer because I forgot to ask when I bought some. I intend to do some more soundproofing (this time, of walls) later in the year and this is an interesting question.

Is there a MSDS or something for stuff I bought here? Is it different from company to company? What is the chemical composition of MSL (if it is same from place to place)? 

BTW, for walls I was told to put a layer of drywall over it, for indoor safety. What in the vinyl makes it potentially a fire hazard, if anything?
Title: Re: Composition of Mass Loaded Vinyl and its properties?
Post by: Randy S on May 29, 2012, 03:44:14 PM
Yes MLV can vary from manufacturer to manufacturer, what I can tell you is we currently carry the highest density ratio in the market today.
Our barium loaded vinyl is a 1.97 density where current standard MLV is 1.80

Standard MLV is UL 94 which was the best we could until now...We now offer Class A E-84 mass loaded vinyl and also passes ASTM E-162 Flame Result and ASTM E662-03 Smoke_Density Flaming....first in the country.

If you contact me directly if you have further questions.

Randy S.