4kg Mass Loaded Vinyl: (MLV) Best Quality Australian Made


Highest Quality 4kg/m2 Mass Loaded Vinyl, flexible acoustic barrier, 1350mm wide * 5 meters = 6.75m2. 

Highly recommended for soundproofing walls, floors, ceilings, home theater rooms, sound studios cars, boats & truck linings. 

Delivery Australia Wide – Click ‘Delivery Details’ below for more information


4kg/m2 Mass Loaded Vinyl, or NuWave Base 4kg/m2, or just MLV, is a high performance, flexible soundproofing barrier from Thermotec Australia.

With an ultra thin profile of 2mm (approximately) and high acoustic performance of Rw 26*, 4kg/m2 Mass Loaded Vinyl is an excellent product to soundproof walls, timber floors and ceiling spaces in residential homes & is particularly suitable for office partitions in commercial buildings.

Mass loaded Vinyl is also commonly used in a wide variety of other applications such as soundproofing cars, boats, pump housings, machinery rooms or other industrial applications.

Mass Loaded Vinyl (MLV) is dark grey or black in colour and Supplied in a roll, 5 meters long by 1350mm wide, weighing approximately 28kg.


4kg/m2 Mass Loaded Vinyl Installation:

4kg/m2 Mass Loaded Vinyl  is very easy to cut and install. The product contains a fabric scrim with an embossed face increasing  tear resistance whilst maintaining high flexibility.

Walls / ceilings / underfloors – the product should be tacked to studs / joists using tacks with large heads or incorporating a washer to minimize tear. Gluing is also beneficial.

Mass Loaded Vinyl (MLV) can be glued to machinery housings, pump housings, boat or car structures to increase the mass and reduce sound transmission.

Sheets should be butted up against each other, or overlapped and taped using a a strong industrial tape.


4kg/m2 Mass Loaded Vinyl Composition:

Mass Loaded Vinyl is comprised of 3 elements.

First, vinyl is employed to provide the product with a high level of flexibility for ease of use.

Second, the Vinyl is impregnated with naturally occurring Barium Sulphate, a non toxic nature and high relative density substance. It is this high relative density (mass) that gives Mass Loaded Vinyl such effective soundproofing capabilities.

Finally, the vinyl and barium mixture is added to a reinforcing scrim to increase the products tensile strength


*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. Independent test reports available.

Want to know more or have a question? Simply contact us below and we’ll do our best to help.

Additional information

Weight 28 kg
Dimensions 140 × 15 × 15 cm


Material Safety Datasheet