MLV100® Premium Mass Loaded Vinyl a mineral loaded heavy layer nominally 4mm thick with a mass of 10kg/m2 specially designed to block unwanted noise. It is equal to lead of the same mass in effectiveness and acts as a thin de-coupling sound barrier in stud walls, ceilings and timber floors. Biggest sound insulation improvements can be achieved when it is used as one layer between two sheets of plasterboard. We strive to be more environmentally friendly with our products so where possible we do not add unnecessary plastic wrappings are added to our MLV Range. This does not only save you time and money on waste disposal but together we are protecting our environment and avoiding additional waste being sent to landfills.