Dow Corning has acquired High-Vacuum Grease from Dow Corning . This is a one component, non-melting silicone oil that is used for sealing and lubricating O-rings, chemical processing equipment, control valves, water treating equipment, pressure systems, plug valves, and high temperature applications. It is a stiff compound with low volatility, and resists chemicals, water, mineral oils, common gases, and organic compounds. 150 g Tube.