Trusted by Science... without contamination... Greases | Lubricants | Waxes | Oils to maintain vacuum integrity...


Hydrocarbon, PFPE, and
silicone free



Etch-resist waxes and
temporary sealants



Vapour boost fluids and
turbo pump oils


Apiezon Vacuum Greases, Lubricants and Sealants

Apiezon high vacuum greases, vacuum sealants and lubricants are favoured around the world because of their quality, consistency and excellent performance in vacuum applications.

In addition, etch resist waxes and AP201 vapour booster pump fluid have also been developed as part of the Apiezon range.

M&I Materials Limited have been manufacturing Apiezon products for over 80 years and you can buy Apiezon through our established network of distributors. Alternatively, if you are based in the UK, Ireland or Europe you can now purchase our greases, AP201, Wax W sticks or Sealing Compound Q directly from M&I Materials via our Apiezon online shop.

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Apiezon High Vacuum Greases

The Apiezon family of high vacuum greases have been serving the market for many years and are highly regarded worldwide for their quality, consistency and excellent performance in vacuum applications.

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 proven success around the world including use by NASA, the UK military and leading vacuum equipment manufacturers.

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. It is ideal as a sealant and lubricant in short path distillation, coating and semiconductor industries.


Known as the original vacuum grease

Apiezon Waxes

Just as Apiezon high vacuum greases, Apiezon waxes and Q Compound are globally renowned for their quality and versatility, and can be used as semi-permanent or permanent mounting media, or as vacuum sealants.

Apiezon Wax W is 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.

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Apiezon Oils

Apiezon offer a comprehensive range of booster pump and vapour pressure oils and fluids, which include Apiezon AP201 as the leading industry vapour booster pump fluid. AP201 has been proven to be far superior to other competing, lower quality oils.

Its stability and high degree of resistance to oxidation make Apiezon the ideal choice for rapidly achieving a higher ultimate vacuum, and some pump manufacturers who specify the use of Apiezon vapour booster pump fluid even warn that using other fluids can actually invalidate their warranties.

Our entire range of oils and fluids are available direct through our online shop or via our extensive network of distributors. If you require large quantities please call us today to discuss discounts.

Apiezon LIVE!

View our recent webinar to understand how to get the best results from Apiezon high vacuum greases, lubricants and sealants for your research and production processes.