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- Mass Loaded Vinyl (MLV)
- Mass Loaded Vinyl (MLV)
Mass Loaded Vinyl (MLV)
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Mass Loaded Vinyl (MLV) has been an industry standard in noise control for decades. All versions are a simple PVC sheet, loaded with barium sulfate or calcium silicate to add weight.
Mass Loaded Vinyl (MLV) has been an industry-standard in noise control for decades. While there are many trade names for this material, all are a simple PVC sheet, loaded with barium sulfate or calcium silicate to add weight. Mass Loaded Vinyl is very dense, weighing one pound per square foot. This mass is what allows the MLV to be so effective at reducing airborne noise.MLV can be used as a barrier in walls, floors, and ceilings to significantly increase the mass of these surfaces and thus reduce noise. Additionally, Mass Loaded Vinyl can be used as a barrier material to wrap metal ducts, plastic plumbing pipe, steel columns, etcetera. This is extruded MLV, not cast. Cast MLV tears much more easily and is also more difficult to install than extruded, which offers:
- High tear and tensile strength
- Significant reduction in sound transmission
- Massive, limp, flexible, formable and versatile
Mass Loaded Vinyl has traditionally been “loaded” with heavy barium sulfate. That is much less common today, and most MLV made in the USA is made with calcium silicate. While it is common to still see “barium loaded vinyl” on an architectural spec, the fact is that barium is rarely used any longer as a filler.
Material: Extruded MLV w/calcium silicate Width: 48” x 25’ (1 lb.) Color: Black Surface: Smooth finish Density/Weight: 1.0 lb. per sq.ft. Thickness: 1/8"(1 lb.) Tensile Strength: 500psi Die "C" Tear: 100 lb. Shore A Durometer: 85 +/-5 Elongation: 90% Burn Test: Meets MVSS302 ULP4 - HF-1 Service Temp: -20F - 180F STC: 26 (1lb.)
*In the United States, MLV is loosely described as “1/8” and 1 pound per square foot”.” This is simply a common description. When various samples from various manufacturers are compared, one finds that none are actually 1/8” and most are not exactly 1 pound. This is the way MLV is manufactured, specified, and sold here in the States. The 1/8" dimension is simply part of an informal description that we as an industry use.
The weight of Mass Loaded Vinyl will vary +5%. We (like all MLV manufacturers) manufacture to a weight criterion, not a dimensional criterion. In general the weight will be 1 pound per square foot +5%. Additionally, the 1 pound material has a thickness of 0.105 inches (2.67mm), again, +5%.
STC Source Side Studs Insulation Receive Side 45 1/2" Drywall, MLV, 1/2" Drywall 24" oc R13 1/2" Drywall
Shipping & Liability Statement
$100 Minimum Order for FREE SHIPPING
Additional $25 Shipping Charge for orders less than $100.
Warehouse Fee of +$10 per order.
60 Days on all Returns All returned unused items are subject to warehouse and 20% re-stock fees. No Returns on Open/Partial Cases, Pails, Single Tubes, Outlet Putty Pads
The Soundproofing Company presents these products and construction concepts with the understanding that local Building Codes vary. It is the responsibility of the installer to ensure product is properly installed, and that these concepts meet local Building Code. The Soundproofing Company is not liable for mis-installation or non-compliance with local code.
Soundproofing Company, Inc.
527 W. Morley Dr. Saginaw, MI. 48601
Support: (800) 397-8791
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