Block Pro is an effective acoustic membrane material based on a non-woven fabric on a polymer layer with improved adhesion properties. The material guarantees a high index of sound insulation properties. Block Pro is intended for application as a final third layer on the most noisy parts of the carbody. It should be applied only on horizontal surfaces! Block Pro is flexible and does not lose efficiency in a wide range of temperatures. Recommended application temperature (°C) – from +10 to +30. Operating temperature (°C) – from -40 to +100.