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Specialist Materials for Industry and Science

Welcome to Apiezon High Vacuum Sealants, Lubricants and Etch Resist 

Apiezon is a range of vacuum sealants, lubricants and etch resist products which are favoured around the world because of their quality, consistency and excellent performance in vacuum applications. 

At M&I Materials Limited we have been developing and producing Apiezon products for over 80 years and pride ourselves on delivering manufacturing excellence and high standards of technical support.

Apiezon products have an enviable track record in many fields ranging from aerospace to cryogenics and they are the primary choice for high vacuum applications.

Apiezon High Vacuum Greases

7 high quality and reliable silicone-free high vacuum greases, suitable for a range of temperatures & applications.

Apiezon Vapour Booster Pump Fluid

Apiezon AP201 is the leading vapour booster pump fluid and has an exceptionally high degree of oxidation resistance.

Apiezon Waxes and Q Compound

Versatile waxes used as semi or permanent vacuum sealants, etch resist, or mounting media; and Q Compound, a temporary vacuum sealant.


  • Apiezon
  • Metrosil
  • Midel
  • Wolfmet

Products of M&I Materials Ltd.