Mass Loaded Vinyl (MLV) Sheet is a high-density, flexible sound barrier engineered to block airborne noise across a wide frequency range. It is composed of polyvinyl chloride (PVC) infused with heavy fillers such as barium sulfate or calcium carbonate, which significantly increase its mass and acoustic performance.
MLV is widely used in residential, commercial, and industrial soundproofing applications. It is especially effective in reducing transmission of voices, traffic noise, and mechanical sounds through walls, ceilings, floors, and partitions. Depending on thickness and installation, MLV can achieve a Sound Transmission Class (STC) rating of 26 to 32, making it one of the most efficient limp-mass barriers available.
Available in thicknesses ranging from 1.5 mm to 5 mm, MLV sheets typically weigh between 2 kg/m² to 5 kg/m². Thicker variants offer better low-frequency attenuation and are ideal for demanding environments like recording studios, home theaters, and multiplexes.
Durability and safety are key features of MLV. It is water-resistant, fire-retardant (Class 1 flame spread), and free from harmful substances like lead, asbestos, and formaldehyde. Its flexible structure allows it to conform to curved or uneven surfaces without cracking or tearing.
Installation is straightforward: MLV can be applied using adhesives, screws with washers, staples, or nails. It can be layered between drywall, wrapped around ducts, or suspended as a curtain. Some variants also come with self-adhesive backing for easier application.
From an environmental perspective, many MLV products are made from recyclable and non-toxic materials, offering a sustainable solution for noise control. Its long service life and minimal maintenance requirements make it a cost-effective investment for long-term acoustic comfort.
Whether you're soundproofing a home office, a commercial conference room, or an industrial generator enclosure, Mass Loaded Vinyl Sheets provide a proven, high-performance solution for reducing unwanted noise and enhancing acoustic privacy.
