The Tap Acoustic Barrier Mat is designed to improve the sound insulation of existing panels of metal, wood, plastic etc. at all frequencies. These barriers are particularly effective in overcoming coincidence dip resonance found in stiff lightweight composites such as plywood sheets and hollow core. The mat is normally fixed in intimate contact with the original panel. The product is free from lead, unrefined aromatic oils and bitumen. Complete with a self adhesive backing for easy installation. Tap Acoustic Barrier Mat Specifications Colour: BlackSuperficial Weight: 10kg/m²Nominal Thickness: 4.0mmTensile Strength: 2.6MpaElongation at Break: 90%