Inland Manufacturing has developed dB Foam, a foaming agent that lubricates and protects while reducing the noise. When used as directed, dB Foam can significantly reduce the sound level of firearm suppressors. In addition to noise reduction, dB Foam displaces water, and provides rust inhibiting protection for the internals of suppressors. Safe to use with most firearm suppressor designs Independent testing using a variety of commercial suppressor designs averaged a 3-5 dB reduction with 10 shot strings of fire utilizing MIL-STD-1474E sound level testing procedures Formulated to maintain the foam consistency for up to 6 months of storage dB Foam is water soluble, Mfg: Mks Supply.Com