Cryogenic PlugPFI can fabricate corks and plugs ranging in size from 1inch to 78 inches in diameter and can machine tolerances to .010 inch. PFI currently manufactures over 50% of the cryogenic corks and plugs in the USA and has many international customers as well.

The company works with many different foams, each having a different set of properties. We offer foams that can hold temperatures from -320 to +350°F. Depending on the client’s needs, we select a material to meet the client’s requirements for various qualities in addition to thermal retention.

As the Vice President of one of PFI’s long standing clients, a major cryogenics equipment manufacturer, told us: “Nobody can touch PFI’s capabilities in fabricating cryogenic corks and plugs. They’ve been a true partner with us since 1971.” PFI takes pride in relationships like that and works very hard to keep raising their standard.

Cryogenic PlugMaterials:

  • PVC Foams
  • Acrylics
  • Styrene
  • Urethanes


  • Thermal-insulating foam corks & plugs
  • Medical/food grade application

Rigid Structural FoamApplications:

  • Artificial Insemination (AI)
  • Pharmaceutical Labs
  • Food Industry
  • Metal handling and treatment
  • Liquid gas
  • Medical labs
  • Dermatology
  • Culture transport
  • Stem cell research
  • NASA/Space research