Additionally, the 1 pound material has a thickness of 0.105 inches (2.67mm), again, +5%. In general the weight will be 1 pound per square foot +5%.
We (like all MLV manufacturers) manufacture to a weight criterion, not a dimensional criterion. The weight of Mass Loaded Vinyl will vary +5%. The 1/8" dimension is simply part of an informal description that we as an industry use. This is the way MLV is manufactured, specified, and sold here in the States. When various samples from various manufacturers are compared, one finds that none are actually 1/8” and most are not exactly 1 pound. *In the United States, MLV is loosely described as “1/8” and 1 pound per square foot”.” This is simply a common description. 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. That is much less common today, and most MLV made in the USA is made with calcium silicate. Mass Loaded Vinyl has traditionally been “loaded” with heavy barium sulfate. Massive, limp, flexible, formable and versatile.Significant reduction in sound transmission.Cast MLV tears much more easily and is also more difficult to install than extruded, which offers: Additionally, Mass Loaded Vinyl can be used as a barrier material to wrap metal ducts, plastic plumbing pipe, steel columns, etcetera. 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. Mass Loaded Vinyl is very dense, weighing one pound per square foot. 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. You can also check our other sites such as Insulation Easy Australia and Soundproofing Products Australia for general insulation and for products specialized in soundproofing.Mass Loaded Vinyl (MLV) has been an industry-standard in noise control for decades. Want to know more or have a question? Simply contact us below and we’ll do our best to help.Ĭheck out other mass loaded vinyl products from Fence Insulation, Acoustic Carpet Underlay, 4ZERO Mass Loaded Vinyl, Mass Loaded Vinyl and Pipe Lagging Insulation. *Rw rating is a single number quantity summarising the transmission loss of a material over the frequency range from 100Hz to 3.15 kHz under AS/NZS 1276.1:1999. It is this high relative density (mass) that gives MLV such effective soundproofing capabilities.įinally, the vinyl and barium mixture is added to a reinforcing scrim to increase the products tensile strength Second, the Vinyl is impregnated with naturally occurring Barium Sulphate, a non toxic nature and high relative density substance. MLV Composition:įirst, vinyl is employed to provide the product with a high level of flexibility for ease of use. The product contains a fabric scrim with an embossed face increasing tear resistance whilst maintaining high flexibility. Sheets should be butted up against each other, or overlapped and taped using a a strong industrial tape. MLV can be glued to machinery housings, pump housings, boat or car structures to increase the mass and reduce sound transmission. Walls / ceilings / under floors – the product should be tacked to studs / joists using tacks with large heads or incorporating a washer to minimize tear. The product contains a fabric scrim with an embossed face increasing tear resistance whilst maintaining high flexibility. Mass Loaded Vinyl is very easy to cut and install. MLV is dark grey or black in colour and Supplied in roll form, 1350mm wide by either 3 meters or 5 meter length. MLV is also commonly used in a wide variety of other applications such as soundproofing cars, boats, pump housings, machinery rooms or other industrial applications. With an ultra thin profile between 1mm to 4mm (approximately) and high acoustic performance of between Rw 26* & Rw30, MLV is an excellent product to soundproof walls and ceiling spaces in residential homes & is particularly suitable for office partitions in commercial buildings. Mass Loaded Vinyl (MLV) is a high performance, flexible soundproofing barrier suitable for applications requiring a high level of soundproofing.
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