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Specialist Materials for Industry and Science

Apiezon High Vacuum Sealants, Lubricants and Etch Resist 

Apiezon is a range of high vacuum greases, vacuum sealants and lubricants that are favoured around the world because of their quality, consistency and excellent performance in vacuum applications. Waxes, etch resist and AP201 vapour booster pump fluid have also been developed as part of the Apiezon range.

At M&I Materials Limited, we have been manufacturing Apiezon products for over 80 years. You can buy Apiezon through our established network of distributors. Alternatively, if you are based in the UK or Europe you can now purchase small volumes of our greases, Wax W sticks or Sealing Compound Q directly from M&I Materials via our Buy Apiezon Online direct from M&I

Please note that we will be closed for the holidays from 24th December until 4th January 2015.

Apiezon High Vacuum Greases

Apiezon is proud to offer the most comprehensive range of high vacuum greases available from a single manufacturer. The range now includes our new grease PFPE 501. It delivers the quality and reliability synonymous with the Apiezon brand and is the perfect addition to our range. 

The Apiezon hydrocarbon based high vacuum greases are silicone-free and highly resistant to creep. These vacuum greases are suitable for use in a range of temperatures and applications. They have had proven success around the world including use by NASA, the UK Military and leading vacuum equipment manufacturers.

PFPE Vacuum Grease

Apiezon PFPE 501 is a chemically inert, high temperature and extreme pressure lubricant. With an upper operating temperature of 250°C and vapour pressure of 1.3 x 10-12 at 25°C, it is robust, versatile and can be used for sealing and lubricating under the most extreme operating conditions.

Apiezon Vapour Booster Pump Fluid

Apiezon AP201 is the leading vapour booster pump fluid and has been proven to be far superior to other competing, lower quality oils. Its superior stability and high degree of oxidation resistance make AP201 the ideal choice for rapidly achieving a higher ultimate vacuum.

Apiezon Waxes and Q Compound

Our 3 waxes and Q Compound are globally renowned for their quality and versatility. They can be used as semi-permanent or permanent mounting media or vacuum sealants. Apiezon W Wax is also chemically resistant and has a successful track record as an etch resist product. The waxes are all easy to use and have powerful gettering qualities.

Apiezon products have an enviable track record in many fields including aerospace, cryogenics, coating and R&D. They are the primary choice for high vacuum applications.


  • Apiezon
  • Metrosil
  • Midel
  • Wolfmet

Products of M&I Materials Ltd.