Metal Foil-Formed Insulation (MFI) for Engine Parts and Exhausts

Firwin's metal foil-formed insulation (MFI) is ideal for use in engine parts and exhausts across the marine, mining, defense, and aerospace industries.


  • Turbochargers
  • Exhaust Manifolds
  • Exhaust Tubing
  • Elbows


  • Mining
  • Defense
  • Marine
  • Aerospace
  • On & Off Highway


  • Conforms tightly to the part
    • Allows for complex shapes and tight tolerances
    • It can be used in applications with limited space
  • Ideal for engine compartment parts that must be able to withstand high temperatures for prolonged periods of time
  • High-temperature performance: Designed to withstand temperatures of up to 1600 °F
  • Nonflammable
  • More durable and long-lasting than removable insulation blankets – unlikely to tear and does not become brittle over time
  • Standard construction: 321 SS 0.005” foil thickness for both inner and outer layers; ½” thick insulation

Firwin MFI for Engine Parts and Exhausts

Image Credit: Firwin Corporation

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