SoundMet is an acoustic insulation jacketing made of a bonded metal and mass loaded vinyl. It provides superior sound damping for insulated pipelines. The most popular base metals are stainless steel and aluminum, while the mass loaded vinyl contains barium sulphate and acts as a sound barrier. SoundMet is ISO 15665 approved and effective for acoustic insulation in all classes. Special variants like SoundMet Low Temp and Fire also exist.