Sound insulationachieved by the coupling of two layers of polyester resin selfextinguishing,with inside a polymer plate EPDM 2 mm., weight 4 kg/sqm. Absorbing medium and low frequencies. Visible surface coatedwith fiber glass to prevent the transmission of heat and noise. Ideal forisolation of spaces, engine compartments, partitions, etc..Thickness mm. 26. Sheet mm. 1000 x 1500. Sold plate.