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ArmaSport Foam (ALC)

SKU# ALC-025-25
automotive airplane marine railway

Armacell's Armasport ALC elastomeric closed cell foams are designed for use in Aerospace, Automotive, and Marine applications. These foams have excellent resistance to oil, fuel, and water, and can be used in both indoor and outdoor applications. This foam is notable for its use as carpet padding, cushioning for seat components, or in headliners and sidewalls. It can also be used for gasketing or sealing applications.

Sold in 25-ft rolls. Rolls may have a skin layer on one side. ±1/16" tolerance on all thicknesses. Thicknesses over 1/2" will have a 15-day lead time. If any thicknesses indicate that they are sold out, please contact us for options as they may be available with a 15-day lead time. 

Note: Includes FAA burn certificate for 25.853(a), except for 1/8" and 3/16" ALC, which do not pass FAR 25.853(a) vertical burn test when tested alone, but do pass when sandwiched between acceptable materials, such as in armrests, carpet padding, wall padding, etc.

Width 56 inch
Density (ASTM D 1056)
6.0 - 8.5 lb/ft3
25% Compression Deflection
(ASTM D 1056)
4.0 - 6.0 psi
50% Compression Set (ASTM D 1056) 25% max
Elongation (ASTM D 412 Die A)
125% min
Tear Strength (ASTM D 624 Die C) 9 lb/in min
Tensile Strength (ASTM D 412) 90 psi min
Water Absorption (ASTM D 1667) 0.1 lb/ft2 max
Temperature Range 0°F to 200°F (intermittent)

Flammability Standards

Armasport ALC foam passes the following flammability standards. Other standards not listed below are also applicable. Contact us for details.

  • California Technical Bulletin 117
  • 14 CFR (FAR) 25.853(a), Part I of Appendix F (Vertical Burn) (at 1/4" thickness and up)
  • 14 CFR (FAR) 23.853(a), (Horizontal Burn)
  • FMVSS-302 (Automotive Flammability)
  • UL94 HF-1 (at 1/8")
  • UL94 V-0 (at 1/2")

This product meets all automotive flammability requirements and is recommended for use in automotive interiors.


    • This product is acceptable for use in all types aircraft and rotorcraft.

    • This product is not acceptable for applications requiring the 25.853(c) Oil Burn for Seat Cushion test unless a suitable fire blocking layer is used.


    This product is recommended for use in marine applications. It has excellent characteristics to resist water absorption and floats.

    Train-Non-Compliant.png This product is not acceptable for use in Railway applications. It does not pass the ASTM smoke density test.