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Our workhorse material, Durlon® 8500 is excellent in steam, natural gas, soybean processing and with new generation refrigerants. A high quality non asbestos general service gasket material for use in a wide range of services in pulp and paper, food, beverage, pharmaceutical, chemical, refinery, gas pipeline and general industry. Durlon® 8500 exhibits good compressibility and recovery, excellent sealability, flexibility and cutting characteristics.
Durlon® 8500 contains high-strength aramid and inorganic fibers bonded with high-grade Nitrile (NBR) rubber.
Durlon® 8500 has successfully passed a modified version of the API 607 fire test. The duration of the direct flame portion of the test is 30 minutes and the flange temperature must reach 1200°F in the first 15 minutes. The internal pressure is held at a constant 30 psig. After the flame is shut off, the fixture is immediately water quenched with an overhead water blast. Leakage must not exceed 100 ml/min after a 6 minute cool down to successfully pass the test. Subsequent leakage testing is also performed.
Much effort has gone into improving the anti-stick release agents of all compressed Durlon® products. All Durlon® compressed gasket materials have passed the MIL-G-24696B Navy Adhesion Test (366°F/48 hrs).
| Thickness | 1/16" |
|---|---|
| Color: | Green |
| Fiber: | Aramid-Inorganic |
| Binder: | NBR |
| Fluid Service: | Saturated Steam, Oils, Dilute Acides & Alkalis, Hydrocarbons, Solvents |
|
Temperature Min: Max: Max,continuous: |
-100°F (-73°C) 700°F (371°C) 548°F (287°C) |
| Pressure: max, bar (psi) | 103 (1,500) |
| Density: g/cc (lbs/ft3) | 1.7 (106) |
| Compressibility, ASTM F36: | 8 to 16% |
| Recovery ASTM F36: | 50% |
| Creep Relaxation: | 20% |
| Tensile Strength, ASTM F152: | 2,000 psi (138 MPa) |
|
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: |
0-15 150-10% 10% |
|
Sealability: ASTM F37 (Fuel A), ml/hr ASTM F37 (Nitrogen, ml/hr ASTM F 2378 (Nitrogen), cc/min |
0.01 0.4 0.03 |
|
Volume Resistivity, Ohm-cm ASTM D257 |
4.2 x 1013 |
|
Dielectric Breakdown, kV/mm ASTM D149 |
11.7 (297) |
| Flexibility, ASTM F147: | 10x |
|
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. |
|
| Thickness | 1/16" | 1/8" |
|---|---|---|
| M | 2.7 | 4.2 |
| Y psi (MPa) | 2359 (16.3) | 2931 (20.2) |
| Gasket Constants | ||
| Gb psi (MPa) | 650 (4.5) | 400 (2.8) |
| a | 0.33 | 0.35 |
| Gs psi (MPa) | 200 (1.4) | 20 (0.1) |
| *Gasket Constants based on proposed ASTM Draft 10.01 | ||
| Nominal Thickness | Sheet Sizes | Order Code | Sheets per Roll | Weight / Sheet lbs (kg) | |
|---|---|---|---|---|---|
| 1/64" (0.4 mm) | 60 x 63 60 x 126 |
1524 x 1600 1254 x 3200 |
DG05-060-063 DG05-060-126 |
20 10 |
5 (2.3) 10 (4.5) |
| 1/32" (0.8 mm) | 60 x 63 60 x 126 |
1524 x 1600 1254 x 3200 |
DG08-060-063 DG08-060-126 |
20 10 |
8 (3.6) 16 (7.3) |
| 1.0 mm | 60 x 63 60 x 126 120 x 126 |
1524 x 1600 1254 x 3200 3048 x 3200 |
DG10-060-063 DG10-060-126 DG10-060-126 |
20 10 2 |
10 (4.5) 21 (9.5) 41 (18.6) |
| 1/16" (1.5 mm) | 60 x 63 60 x 126 120 x 126 |
1524 x 1600 1254 x 3200 3048 x 3200 |
DG15-060-063 DG15-060-126 DG15-060-126 |
10 5 2 |
16 (7.3) 31 (14.1) 62 (28.1) |
| 2.0 mm | 60 x 63 60 x 126 120 x 126 |
1524 x 1600 1254 x 3200 3048 x 3200 |
DG20-060-063 DG20-060-126 DG20-060-126 |
10 5 2 |
21 (9.5) 41 (18.6) 83 (37.6) |
| 3/32" (2.5 mm) | 60 x 63 60 x 126 |
1524 x 1600 1254 x 3200 |
DG25-060-063 DG25-060-126 |
8 4 |
26 (11.8) 52 (23.6) |
| 1/8" (3.0 mm) | 60 x 63 60 x 126 120 x 126 |
1524 x 1600 1254 x 3200 3048 x 3200 |
DG30-060-063 DG30-060-126 DG30-060-126 |
8 4 1 |
31 (14.1) 62 (28.1) 124 (56.2) |
|
Note: Please inquire about availability of 4.0mm and 5.0mm thicknesses and other sizes not listed.
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. |
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