Mass Loaded Vinyl (MLV)

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 MLV Specifications Mass Loaded Vinyl has traditionally been “loaded” with heavy barium sulfate. Tha