fonosphera® XB-20TNTthermoforming solutionSoundproofing, sound-absorbing sandwich panel with thermal insulation properties, consisting of a layer of reticulated polyethylene with a sphere pattern and a body of material with a low mechanical modulus made from a polymer base with mineral filler, laminated onto a layer of 20 mm thick polyester fibre coated with black non-woven fabric (water and oil repellent). Main characteristics and use: Ideal for lamination onto metal and fibreglass structures, plastic laminates and wood, for use in engine compartments, machine tool guards, music rooms and construction in general. Characteristics of the material: 2.7 kg/m2 Fire resistance of polyester fibre: Self-extinguishing ISO 3795 speed ≤ 100mm/min, Euroclass EN 13501 Class B for fire, s1 for smoke, d0 for dripping |