Introduction:
High Vacuum Silicone Grease is a stiff, non-melting, silicone-based lubricant and sealant designed for high vacuum, high pressure, and high temperature systems. It maintains a consistent texture across a wide temperature range (-40°C to 250°C) and exhibits excellent chemical resistance, low volatility, and strong sealing ability. These properties make it ideal for use in vacuum systems, laboratory equipment, and chemical processing machinery.
 
Applications (Main Points):
Sealant and lubricant for glass joints and stopcocks in vacuum and high-temperature systems
Used in valves of water softeners, control valves, and ceramic plug cocks
Applied in fire extinguishers to ensure valve operability under severe conditions
Serves as a sealant for floating telephone batteries
Used for positioning rubber and other components during assembly
Functions as a release agent for epoxy, PVC, polystyrene, and polyester resins
 
Chemical Resistance:
Resistant to dilute aqueous acids, alkalis, and inorganic salt solutions
Unaffected by most vegetable and mineral oils, gases, and organic compounds
 
Solubility:
Insoluble in water, acetone, glycol, and glycerin
Dispersible in kerosene, benzene, toluene, ethyl ether, carbon tetrachloride, petroleum ether, methylene chloride, and perchloroethylene
 
Benefits:
Excellent sealing and lubricating performance under high vacuum and temperature
Chemically resistant to acids, alkalis, and oils
Highly adhesive and water-repellent
Non-melting and stable over a wide temperature range
Long-lasting performance in harsh industrial environments