Durlon® 8300 Carbon/NBR


Application:

DURLON®8300 is premium grade compressed sheet gasket material that is excellent in steam and hydrocarbon services in the refining, petrochemical and power generation industries. Other applications include oil, water, mild alkalis, mild acids and solvents.

Composition:

DURLON® 8300 contains high-strength carbon fibres bonded with nitrile (NBR) synthetic rubber. A release agent on both sides provides good anti-stick properties.

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).

Durlon® 8300 Carbon/NBR

ColourBlack
Fibre SystemCarbon
BinderNBR
Temperature
Min
Max
Max, continuous
-73°C (-100°F)
482°C (900°F)
343°C (650°F)
Pressure, max, bar (psi)139 (2,000)
Density, g/cc (lbs/ft3)1.6 (100)
Compressibility, %
ASTM F36
8-16
Recovery, %
ASTM F36
50
Creep Relaxation, %18
Tensile Strength across grain
ASTM F152, MPa (psi)
12.4 (1,800)
Fluid Resistance, ASTM F 146
IRM 903 Oil 5 hours at 149°C (300°F)
Thickness Increase, %
Weight Increase, %
ASTM Fuel B 5 hours at 21°C (70°F)
Thickness Increase, %
Weight Increase, %
0-10
100-10
12
Sealability,
ASTM F37 (Fuel A), ml/hr
ASTM F37 (Nitrogen), ml/hr
ASTM F 2378 (Nitrogen), cc/min
0.03
0.5
0.05
Volume Resistivity, ohm-cm
ASTM D257
5 x 109
Dielectric Breakdown, kV/mm
ASTM D149
0.04(1)
Gasket Factors
m
Y, psi (MPa)
Gb, psi (MPa)
a
Gs, psi (MPa)
1/16″ 1/8″
3.7 3.0
3,515 (24.2) 4,014 (27.7)
512 (2.5) 1,716 (11.8)
0.36 0.209
13 (0.09) 70 (0.48)
Flexibility,
ASTM F147
10x