Durlon® 8900

A premium grade material for service conditions to 496°C (925°F) and continuous operating temperatures of -73°C to 400°C (-100°F to 752°F). Suitable for saturated and superheated steam, oil, dilute acids and alkalis, hydrocarbons, and solvents. Durlon® 8900 has achieved the requirements of the Fire Test Certification ANSI/API 607, 6th Edition with zero leakage.

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Durlon® 8900 is a premium grade compressed non-asbestos sheet gasket material for service conditions to 496°C (925°F) and continuous operating temperatures of -73ºC to 400°C (-100ºF to 752°F) or 13.8 MPa (2,000 psi). It is suitable for water, saturated steam, superheated steam, oil, mild alkalis and acids, hydrocarbons and solvents.
Durlon® 8900 was specially developed to withstand high temperature and pressure application with good chemical resistance. It contains high strength fibers and graphite fillers bonded with high performance nitrile (NBR) synthetic rubber. Rubber level was optimized to obtain a flexible sheet with good cutting properties without compromising on physical properties at high temperature.
Color Black, branded
Fiber System Aramid/Inorganic
Binder NBR
Temp. Min.
Temp. Max.
Continuous, Max		 -73°C (-100°F)
496°C (925°F)
400°C (752°F)
Pressure, max, bar (psi) 138 (2,000)
Density, g/cc (lbs/ft3) 1.6 (100)
Compressibility, % 7-17
Recovery, % 50
Creep Relaxation, % 15
Tensile Strength, MPa (psi) 13.8 (2,000)
Sealability
ASTM 2378 (Nitrogen)		 0.2 cc/min
Fluid Resistance, ASTM F146 IRM 903 Oil 5hrs at 300°F
Thickness Increase, %
Weight Increase, %		 3
15
Fluid Resistance, ASTM Fuel B 5hrs at 70°F
Thickness Increase, %
Weight Increase, %		 4
12
Flexibility, ASTM F147 12x
Volume Resistivity, ohm-cm ASTM D257 4.01 x 100
Stress Relaxation, DIN 52913 @ 7,252psi (50 MPa)
16 hr @ 347°F (175°C)
16 hr @ 572°F (300°C)		 6,500 (44.8) Min.
6,000 (41.4) Min.

Note: ASTM properties based on 1/16″ sheet thickness except ASTM F38, which is based on 1/32″ sheet thickness. This is a general guide only and should not be the sole means of accepting or rejecting this material. The data listed here falls within the normal range of product properties but should not be used to establish specification limits nor used alone as the basis of design.

*For applications above Class 300, consult your representative.

ANSI/API 607 Fire Test 6th Ed., Zero leakage
RoHS Reach Declaration Compliant
1/16” 1/8”
m 4.8 7.3
Y psi (MPa) 4,851 (33.4) 3,730 (25.7)
Gb psi (MPa) 915 (6.3) 567 (3.9)
a 0.428 0.556
Gs psi (MPa) 0.02 (0.0001) .26 (0.002)