Industrial Rubber Co.

The place to go when you need a hose        

Hose fabrication since  1950

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2 Locations -  Elizabeth & Bound Brook, NJ

 
 

SPECIFICATION SHEET
September 2006

DURLON® 8500
Aramid/Inorganic Fiber with NBR Rubber Binder
COMPRESSED SHEET GASKET MATERIAL
ASTM F104: F712120-A9B3E12K5L151M
6

 


APPLICATION:

Our workhorse material, DURLON® 8500 is excellent in steam, natural gas, soybean processing and with new generation refrigerants.  A high quality 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.

COMPOSITION:

DURLON® 8500 contains high-strength aramid and inorganic fibers bonded with high-grade Nitrile (NBR) rubber.

FIRE TESTING:

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.

ANTI-STICK PROPERTIES:

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).

  TYPICAL PROPERTIES:

   Color:    Green, branded
   Fiber:    Aramid/Inorganic
   Binder:    Nitrile (NBR)
   Fluid Services:    Saturated Steam, Oils, Fuels, Dilute
   Acids & Alkalis, Solvents, Refrigerants
   Density:    1.7 g/cm3 (106 lbs./ft3)
   Tensile Strength, ASTM F152:    2,000 psi (13.8 MPa)
   Compressibility, ASTM F36:    8 to 16%
   Recovery ASTM F36:    50%
   Temperature
          Range:
          Continuous, max:
  
   -100 to 700°F (-73 to 371°C)
   548°F (287°C)
   Pressure, max:    1500 psig (103 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:


   0 to 15%
   15%

   0 to 10%
   10%
   Sealability
          ASTM F37 (Fuel A):
          ASTM F37 (Nitrogen):
  
   0.01 mL/hr
   0.4 mL/hr
   Volume Resistivity, ASTM D257:    4.2 x 1013 ohm-cm
   Dielectric Breakdown, ASTM D149:    11.7 kV/mm (297 V/mil)
   DIN 3535 Gas Permeability:    0.03 cc/min
   Creep Relaxation ASTM F38:    20%
   Flexibility, ASTM F147:    10x