Mass-loaded Vinyl (MLV)
Mass-loaded vinyl (MLV) is heavy, yet thin, and flexible, which makes it a perfect soundproofing material for specific kinds of applications. MLV is a flexible sound barrier product that is heavily weighted. In most modern products, the weight is provided by calcium silicate, although barium sulfate is also still used. It’s this added weight that provides the soundproofing element of mass.
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Characteristics of MLV: MLV acoustical material supply comes in several thicknesses, with the following approximate sound transmission class (STC) values:
| Thickness (inches) |
Weight (pounds per square foot) |
Sound Transmission Class |
| 1/16 | 0.5 | 21 |
| 1/8 | 1 | 26–27 |
| 1/4 | 2 | 31–32 |
Advantages of MLV: The features that make mass-loaded vinyl so interesting for soundproofing applications are its thinness and its flexibility. MLV can be nailed, screwed, stapled, or hung (using reinforcement and grommets).
Thinness: A sheet of MLV that is 1/8 inch thick typically weighs about 1 pound per square foot. For comparison, that’s more than twice the mass in an equivalent thickness of drywall. If space is at a premium in your soundproofing project, MLV offers a solution.
Flexibility: The classic source of soundproofing mass, drywall, comes in rigid panels. MLV, in contrast, is useful in situations where you need a flexible sound barrier, such as for wrapping around pipes. It can also be transported in a roll and used in a temporary installation as a sound curtain.
MASS LOADED VINYL BARRIER MATERIAL
1.0 lb. NON-REINFORCED
STANDARD SPECIFICATION
| TEST Width Color Surface |
TEST METHOD |
STANDARD 48″ & 54″ (standard) BlackSmooth |
| Density/Weight | ASTM D412 | 1.0 lb. per SF |
| Tensile Strength | ASTM D412 | 500 PSI |
| Die “C” Tear | ASTM D412 | 100 LBS. |
| Shore A Durometer | ASTM D2240 | 85 +1- 5 |
| Elongation | ASTM D412 | 90% |
| Burn Tests | Meets MVSS302 | Self Extinguishing |
| UL94 — HF-1 | Pass | |
| Service Temperature | -20°F — 180°F | |
| Sound Transmission | ASTM E 90 (90A) | 26 |
Class (STC)
|
Product #
|
Sound Transmission Class_(db Frequency Hz) |
STC
|
|||||
|
125 |
256 | 500 |
1000 |
2000 |
4000 | ||
|
17 |
18 | 22 |
27 |
32 |
36 |
26 |
|
The information contained herein is believed to be reliable, but all recommendations or suggestions are made without guarantee inasmuch as conditions and methods of commercial use are beyond our control.
MASS LOADED VINYL BARRIER MATERIAL
2.0 lb. NON-REINFORCED
STANDARD SPECIFICATION
ASTM D412 500 PSI100 LBS.
| TEST Width Color Surface |
TEST METHOD |
STANDARD 48″ & 54″ (standard) BlackSmooth |
| Density/Weight | ASTM D412 | 2.0 lb. per SF |
| Tensile Strength | ASTM D412 | 500 PSI |
| Die “C” Tear | ASTM D412 | 100 LBS. |
| Shore A Durometer | ASTM D2240 | 85 +1- 5 |
| Elongation | ASTM D412 | 90% |
| Burn Tests | Meets MVSS302 | Self Extinguishing |
| UL94 — HF-1 | Pass | |
| Service Temperature | -20°F — 180°F | |
| Sound Transmission | ASTM E 90 (90A) | 31 |
Class (STC)
|
Product #
|
Sound Transmission Class_(db Frequency Hz) |
STC
|
|||||
| 125 | 256 | 500 | 1000 | 2000 | 4000 | ||
| 20 | 22 | 26 | 32 | 37 | 41 | 31 | |
The information contained herein is believed to be reliable, but all recommendations or suggestions are made without guarantee inasmuch as conditions and methods of commercial use are beyond our control.
MASS LOADED VINYL BARRIER MATERIAL
Plenum (Class A)
1.0 lb. NON-REINFORCED
STANDARD SPECIFICATION
Product Description:
Width 48″
Color White
Surface Smooth
TEST TEST METHOD STANDARD
Density/Weight ASTM D412 1.0 lb. per SF
Tensile Strength ASTM D412 625 PSI
Die “C” Tear ASTM D412 125 LBS.
Shore A Durometer ASTM D2240 89 +/- 5
Elongation ASTM D412 90%
Burn Tests ASTM E-84
Flame Spread Index (FSI) < 25
50 Smoke Developed Index (SDI) < 50
Service Temperature -20°F – 180°F
Sound Transmission ASTM E 90 (90A) 26
Class (STC)
Revision as of May 2012
The information contained herein is believed to be reliable, but all recommendations or suggestions are made without guarantee inasmuch as conditions and methods of commercial use are beyond our control.
