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8900 Aramid-Graphite/NBR Rubber Binder

COMPRESSED SHEET GASKET MATERIAL

ASTM F104: F712120-A9B2E21L101M6
Durlon_8900-222845-edited.png

APPLICATION:

Durlon® 8900 is a premium grade compressed non-asbestos sheet gasket material for service conditions to 925°F (496°C) and continuous operating temperatures of -100ºF to 752°F (-73ºC to 400°C), or 2000 psi (13.8 MPa). It is suitable for saturated and superheated steam, oil, dilute acids and alkalis, hydrocarbons, solvents and refrigerants.

COMPOSITION:

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.

FIRE TESTING:

Durlon® 8900 has achieved the requirements of the Fire Test Certification ANSI/API 607, 6th Edition with zero leakage.

typical properties:

Color: Black, branded
Fiber: Aramid/Inorganic
Binder: Nitrile (NBR)
Fluid Services: Saturated and Superheated Steam, Oil, Dilute Acids & Alkalis, Hydrocarbons, Solvents, Refrigerants
Density: 1.6 g/cm3 (100 lbs./ft3)
Tensile Strength, ASTM F152: 2,000 psi (13.8 MPa)
Compressibility, ASTM F36: 7 to 17%
Recovery ASTM F36: 50%
Temperature
   Range:
   Continuous, max:

-100 to 925°F (-73 to 496°C)
752°F (400°C)
Pressure, max: 2000 psig (138 bar)
Fluid Resistance - ASTM F146
IRM 903 oil, 5 h/300°F (149°C)
   Thickness Increase:
   Weight Increase:
ASTM Fuel B 5 h/70°F (21°C)
   Thickness Increase:
   Weight Increase:


3% Maximum
15% Maximum

4% Maximum
12% Maximum
Stress Relaxation, DIN 52913 @ 7252 psi (50 MPa)
   16 h @ 347°F (175°C)
   16 h @ 572°F (300°C)


6500 psi (44.8 MPa) Minimum
6000 psi (41.4 MPa) Minimum
Volume Resistivity, ASTM D257: 4.01 x 100 ohm-cm
Dielectric Breakdown, ASTM D149: N/A
Nitrogen Permeability, ASTM F2378: 0.02 cc/min
Creep Relaxation ASTM F38: 15% Maximum
Flexibility, ASTM F147: 12x
ASTM F104 Line Call-Out F712120-A9B2E21L101M6
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.

available sheet sizes:

Nominal
Thickness
Sheet Sizes
inches mm
Order CodeSheets
Per Roll
Approx.
Weight/Sheet
lbs (kg)
1/64" 0.5mm 60 x 63
60 x 126
1524 x 1600
1524 x 3200
GR05-060-063
GR05-060-126
20
10
4 (1.81)
8 (3.63)
1/32" 0.8mm 60 x 63
40 x 126
60 x 126
120 x 126
1524 x 1600
1016 x 3200
1524 x 3200
3048 x 3200
GR08-060-063
GR08-040-126
GR08-060-126
GR08-120-126
20
10
10
5
7 (3.18)
9 (4.08)
14 (6.35)
28 (12.7)
1.0mm 60 x 63
40 x 126
60 x 126
120 x 126
1524 x 1600
1016 x 3200
1524 x 3200
3048 x 3200
GR10-060-063
GR10-040-126
GR10-060-126
GR10-120-126
20
10
10
5
9 (4.08)
12 (5.44)
19 (8.62)
37 (16.78)
1/16" 1.5mm 60 x 63
40 x 126
60 x 126
120 x 126
1524 x 1600
1016 x 3200
1524 x 3200
3048 x 3200
GR15-060-063
GR15-040-126
GR15-060-126
GR15-120-126
10
5
5
2
15 (6.80)
19 (8.62)
29 (13.15)
58 (26.31)
2.0mm 60 x 63
40 x 126
60 x 126
120 x 126
1524 x 1600
1016 x 3200
1524 x 3200
3048 x 3200
GR20-060-063
GR20-040-126
GR20-060-126
GR20-120-126
10
5
5
2
18 (8.16)
24 (10.89)
38 (17.24)
74 (33.57)
3/32" 2.5mm 60 x 63
40 x 126
60 x 126
120 x 126
1524 x 1600
1016 x 3200
1524 x 3200
3048 x 3200
GR25-060-063
GR25-040-126
GR25-060-126
GR25-120-126
8
4
4
1
23 (10.43)
31 (14.06)
46 (20.87)
92 (41.73)
1/8" 3.0mm 60 x 63
40 x 126
60 x 126
120 x 126
1524 x 1600
1016 x 3200
1524 x 3200
3048 x 3200
GR30-060-063
GR30-040-126
GR30-060-126
GR30-120-126
8
4
4
1
28 (12.70)
37 (16.78)
55 (24.95)
110 (49.90)
Note: Please inquire about sizes and thicknesses not listed.
 

STANDARD TESTING:

Tests are standard ASTM procedures. Specific information on any test results and the procedure used is available upon request.

TESTING VS OPERATING CONDITIONS:

All test methods provide a standardized procedure to measure specific effects under controlled conditions. The results of any test are not intended to have any direct correlation with service conditions.

_____________________________________________________________________________________________________

Warning: Durlon® gasket materials should never be recommended when both the temperature and the pressure are at the maximums listed. Properties and applications shown are typical. No application should be undertaken by anyone without independent study and evaluation for suitability. Never use more than one gasket in one flange joint, and never reuse a gasket. Improper use or gasket selection could cause property damage and/or serious personal injury. The data reported is a compilation of field testing, field service reports and/or in-house testing. While the utmost care has gone into publishing the information contained herein, we assume no responsibility for errors. The information and specifications contained in this website are subject to change without notice. This revision cancels and obsoletes all previous editions.