Fluoramics Formula-8 Joint Thread Sealant Liquid Oxygen-Compatible Odor Free Sealer New It is Especially Capable for Sealing Oxygen and Acetylene Cylinder Valves Use it for Natural Gas Applications, Welding Equipment, Gas Bottle Valves, Oxygen Distribution Oxygen-Compatible, Chemically Inert, Odor-Free Sealer Designed for use in Dry Conditions (We also Carry a Complete Line of Compressed Gas Cylinders Valves and Parts)