Profile: Soundown Corp. manufactures and markets noise & vibration control materials. Our product line includes acoustic insulation, exhaust silencers, vibration damping and isolation mounts. Our soundown barrier composite insulation is a fire retardant polyether foam absorber of decoupler type, with a mass loaded PVC barrier. Exhaust silencers are used in both above & below water discharge for applications ranging from small 7 kW generators up to 3500 hp main engines. Our engine isolation mounts are used for the reduction of structure borne noise from propulsion engines.