· This product "F" – 140 is a "scratch-proof, sound absorption resistant so you can still work, and features excellent composite type of material. One-sided adhesive on the difference, you can with one touch installation by our. Machine, printer, printing and other OA equipment can be used on wide range of field for the first, construction machinery, appliances, etc.) at the same time. · From External Noise, such as in the field of automobiles, floor, around doors, wheel house absorbing vibration, effective protection, and much more.