MOLYKOTE High-Vacuum Grease

Stiff, Non-Melting Silicone Lubricant

Key Features & Benefits

• Reduces wear in plastic-to-metal and rubber-to-metal contact.
• Low volatility for reliable performance in high-vacuum environments.
• Excellent resistance to water, chemicals, and extreme high and low temperatures.
• Compliant with FDA regulation 21 CFR 175.300 for safe use in applicable environments.

Composition

• Silicone oil for smooth and long-lasting lubrication.
• Inorganic thickener for stability and non-melting properties.

Applications

MOLYKOTE® High-Vacuum Grease is designed for:

• Sealing and lubricating chemical processing equipment.
• Lubricating plug valves, control valves, flow meter bearings, ceramic plug cocks, fire extinguisher valves, and water treatment equipment.
• Protecting synthetic rubber gaskets and seals in high-temperature environments.
• Sealing vacuum and pressure systems for enhanced efficiency.
• Lubricating O-rings in binoculars and telescopes, preventing fogging of delicate lenses.

Performance Data

Solubility

MOLYKOTE® High-Vacuum Grease is insoluble in:

• Water
• Methanol, ethanol
• Acetone, glycol, glycerine

It can be dispersed in:

• Kerosene
• Stoddard solvent
• Benzene, toluene
• Ethyl ether, petroleum ether

Chemical Resistance

MOLYKOTE® High-Vacuum Grease is highly resistant to:

• Most vegetable and mineral oils.
• Many organic compounds and common gases.
• Most aqueous solutions of inorganic salts, as well as dilute acids and alkalis.

⚠ Important: Always test compatibility before regular use to ensure suitability for your application.

Storage & Shelf Life

• Store at or below 30°C (86°F) in the original unopened containers.
• Shelf life: 60 months from the date of manufacture.