High quality acoustic insulation ideal for high performance marine applications. It consists of three insulating layers of which 88 % is open cell polyurethane foam impregnated with anti-flammable treatment. The type of impregnation gives the product great durability. The insulating layer is a heavy sheet made up of an EPDM rubber-based polymer matrix and EVA flame retardant which, in addition to its many technical characteristics, offers high sound-absorbing properties. Finally, the coating is made of fibreglass fabric, which provides high mechanical strength and enhances soundproofing. Supplied in 1200 x 1000 mm plates