Vibrant material causes sound. Think of the beat of a drum, singing of a saw, or the closing of a hood of the car. When the sheet metal no longer vibrates or resonates, it will not produce sound. Pyrotek Decidamp SP150 is a water based sprayable paste which prevents the occurrence of vibrations in metal sheet. On the following pages you can read the effects of the use of Decidamp SP150 in an aluminum luxury yacht and in the cargo space of a van.