ASTM F104 F712940E44M5

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Comparable to

  • Crane 4160
  • Durabla 8600
  • Durlon 8600
  • Flexitallic 2420
  • Garlock 3200/3400
  • JW Clipper Leader Gasket 960/961
  • Lamons L-640W
  • Thermoseal (Klinger) C6400

Service Limits

Temperature Limits
Maximum716°F (380°C)
Continuous Max490°F (270°C)
Pressure Limits
Maximum1015 psi (70 bar)
Continuous Max725 psi (50 bar)
ASTM F104Line Call OutF712940E44M5
ColorOff White
Available Sheet Sizes
Thickness1/64", 1/32", 1/16", 3/32", 1/8"
Sheet Sizes59" x 63"
59" x 126"

Typical Physical Properties

ASTM Test MethodPropertyValue
-Density122 lb/ft^3 (1.96 gm/cc)
F36Recoverymin 45%
F152Tensile Strength2030 psi (14 MPa)
F495Ignition LossMax 28%
F146Thickness Increase After 5 Hour Immersion
-ASTM IRM 903 @ 300°F (150°C)Max 40%
-ASTM Fuel B @ 77°F (25°C)Max 20%
F136Weight Increase After 5 Hour Immersion
-ASTM IRM 903 @ 300°F (150°C)Max 30%
-ASTM Fuel B @ 77°F (25°C)Max 30%
F38Creep Relaxation22%
-Torque Retention (DIN 52913)37 N/mm^2
F37Sealibility at 1000 psi0.25 ml/h


Style NA1080 is a compressed non-asbestos sheet gasket material produced from a combination of Aramid Fiber, Inorganic Fillers and bonded with Styrene-Butadiene Rubber (SBR). It is manufactured
under rigorous quality control standards that are registered under ISO-9001 certification.

Application / Service

Style NA1080 has numerous applications in the process industries handling media like: mild acids and alkalis, water, brine, saturated steam, air, industrial gases, general chemicals, neutral solutions.

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