Car Sound Insulation with the following features:

• Index: WF 4 mm
• Thickness: 4.0 ± 0.2 mm
• Weight per m²: 6.4 kg, at least
• Sheet thickness: 100 mN
• Sheet size: 0.5 x 0.7 m
• Number of pieces per m²: 10/3.5 m²
• Mechanical loss factor at 200 Hz: 0.60
• Adhesion strength of the material to metal surface during detachment: 6 N/cm², at least
• Stability of the adhesive polymer layer at 90º C: 24 hours without detachment
• Adhesion strength of the silicone paper to the adhesive polymer layer: 0.05-0.15 N/cm²
• Flammability: Non-flammable, self-extinguishing (100 mm/min, at most)