Product Description

DuPont MOLYKOTE High Vacuum Grease


Reliable Silicone-Based Grease for High-Pressure and Vacuum Systems


Product Overview:

DuPont MOLYKOTE High Vacuum Grease is a high-quality, silicone-based grease designed to perform under high pressure and in vacuum environments. With an NLGI Grade of 3-4, it’s made to seal and lubricate plastic-on-metal and rubber-on-metal parts. This grease stands up to chemicals, water, and extreme temperatures, ensuring smooth, long-lasting performance.

Key Applications:

DuPont MOLYKOTE® High Vacuum Grease can be used in many industrial applications, including:

  • Pressure Plugs & Control Valves – Smooths operation under pressure.
  • Water Softener Parts & Faucets – Protects connections from water damage.
  • Vacuum & Pressure Seals – Keeps seals strong in tough environments.
  • Chemical Processing Valves – Resists harsh chemicals for lasting reliability.
  • Meters & Electrical Connections – Offers insulation and lubricates sensitive parts.
  • O-Rings, Gaskets & Seals – Extends life of rubber and plastic components.

Features & Benefits:

  • Strong Chemical Resistance – Works with a wide range of chemicals.
  • Wide Temperature Range – Operates from -40°C to 204°C (-40°F to 399°F).
  • Low Volatility – Ideal for vacuum applications.
  • Non-Melting Formula – Handles high temperatures without breaking down.
  • FDA Compliance – Meets FDA 21 CFR 175.300 for safe use in sensitive areas.

Problems Solved:

DuPont MOLYKOTE® High Vacuum Grease addresses common issues like:

  • Chemical Breakdown – Stays effective even in contact with solvents.
  • Grease Melting or Evaporation – Non-melting formula means fewer reapplications.

Product Specs:

  • NLGI Grade: 3-4
  • Thickener: Silica
  • Temperature Range: -40°C to 204°C (-40°F to 399°F)
  • Color: Translucent White
  • Melting Point: None

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