Bitumen Damping Sheet 1.5 x 1m Damping Sheet are designed to reduce acoustic and vibrational noise of sheet metal and improve sound insulation performance of a substrate by adding mass. The sheets are manufactured from bitumen, synthetic rubber, and minerals to create a flexible, visco-elastic material. Bitumen based Damping Sheets are available in five standard grades, two of which have aluminium foil embossed on one side for improved acoustic performance.Key Features: Excellent vibration damping properties Effective noise barrier Fire resistant Can be cut to bespoke shapes and sizes Available in different Sizes Technical Data Sheet : Download Technical Data sheet