Product Description

SOLIMIDE® CC-306 polyimide open-cell foam is utilized in the marine market as lightweight, non-flammable, non-fibrous thermal and acoustic foam insulation for submarine hulls and other marine vessels. CC-306 can be cut into a variety of shapes and sizes, then faced or coated to meet end user requirements.

Specifications / Certificates

  • • SOLIMIDE® CC-306 foam is specified as insulation for Electric Boat / Newport News current submarine programs and by BAE Systems for the Astute Program. Please contact us to determine if it meets your specifications or other requirements for thermal and acoustic foam insulation.

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Density  lb/ft3 (kg/m3) 0.50 (8.0)  ASTM D3574 Test A,
IOS 845
Flaming Spread Index   ≤5 ASTM E162
Smoke Developed Index
Non-flaming Modes
  3 ASTM E662
Smoke Developed Index
  5 ASTM E662
Noise Reduction Coefficient (NRC), 1
in (25mm)

0.75 ASTM C423 and E795,
Mounting A
Max Continuous Use Temperature °F (°C) 400 (200)  
Thermal Conductivity at 75°F (24°C) BTU-in/hr-ft2-°F
0.32 (0.046) ASTM C518


  • -  Submarines
  • -  Naval vessels
  • -  Specialty defense applications
  • -  Buses, railcars and subways
  • -  Construction