Durlon® 8400 Phenolic/NBR

Application:

With an extremely wide pH application range, DURLON® 8400 can be used in process piping and equipment in chemical, pulp and paper, and other general industrial applications. A unique high-performance compressed sheet DURLON® 8400 is an excellent gasket material for use in steam, mild caustics and acids in Class 150 and 300 service.

 

Composition:

DURLON® 8400 contains high temperature phenolic fibres and minerals combined with high-grade nitrile (NBR) rubber. It exhibits higher temperature limits than aramid based materials and the handling and cutting characteristics are greatly improved over carbon and glass fibre products.

 

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).

 

Ph range:

DURLON® 8400 has a pH application range of 2 to 13 at room temperature, the widest any compressed sheet gasket material produced today. This makes DURLON® 8400 especially suitable in pulp and paper, and chemical plant applications.

 

Typical Physical Properties:

Colour Gold
Fibre System Phenolic
Binder NBR
Temperature
Min
Max
Max, continuous
-73°C (-100°F)
427°C (800°F)
290°C (554°F)
Pressure, max, bar (psi) 103 (1,500)
Density, g/cc (lbs/ft3) 1.7 (106)
Compressibility, %
ASTM F36
8-16
Recovery, %
ASTM F36
50
Creep Relaxation, %
ASTM F38
25
Tensile Strength across grain
ASTM F152,  MPa (psi)
12.4 (1,800)
Fluid Resistance, ASTM F146
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, %
0-15
150-10
15
Sealability,
ASTM F37 (Fuel A), ml/hr
ASTM F37 (Nitrogen), ml/hrASTM F37 (Nitrogen), cc/min
0.01
0.3
0.03
Volume Resistivity
ASTM D257, ohm-cm
3.1 x 1013
Dielectric Breakdown
ASTM D149, kV/mm (V/mil)
14.6 (371)
Gasket Factors
m
Y, psi
Gb, psi
a
Gs, psi
1/16″                 1/8″
2.9                    4.5
2,410 (16.6)    3,967 (27.4)
2,000 (13.8)   1,076 (7.4)
0.194                0.289
340 (2.3)         94 (0.7)
Flexibility,
ASTM F147
8x

 

*ASTM Testing

Sort Products by

Sheet SizeThicknessProduct NumberSheet Weight lbs(kgs)
60 x 63 (1524 x 1600)1/64" (0.5mm)GD05-060-0635 (2.3)
60 x 126 (1524 x 3200)1/64" (0.5mm)GD05-060-1269 (4.1)
60 x 63 (1524 x 1600)1/32" (0.8mm)GD08-060-0637 (3.2)
40 x 126 (1016 x 3200)1/32" (0.8mm)GD08-040-1269 (4.1)
60 x 126 (1524 x 3200)1/32" (0.8mm)GD08-060-12614 (6.4)
60 x 63 (1524 x 1600)1.0mmGD10-060-0639 (4.1)
40 x 126 (1016 x 3200)1.0mmGD10-040-12612 (5.4)
60 x 126 (1524 x 3200)1.0mmGD10-060-12618 (8.2)
120 x 126 (3048 x 3200)1.0mmGD10-120-12636 (16.3)
60 x 63 (1524 x 1600)1/16" (1.5mm)GD15-060-06314 (6.4)
40 x 126 (1016 x 3200)1/16" (1.5mm)GD15-040-12618 (8.2)
60 x 126 (1524 x 3200)1/16" (1.5mm)GD15-060-12627 (12.2)
120 x 126 (3048 x 3200)1/16" (1.5mm)GD15-120-12655 (24.9)
60 x 63 (1524 x 1600)2.0mmGD20-060-06318 (8.2)
40 x 126 (1016 x 3200)2.0mmGD20-040-12624 (10.9)
60 x 126 (1524 x 3200)2.0mmGD20-060-12636 (16.3)
120 x 126 (3048 x 3200)2.0mmGD20-120-12673 (33.1)
60 x 63 (1524 x 1600)3/32" (2.5mm)GD25-060-06323 (10.4)
40 x 126 (1016 x 3200)3/32" (2.5mm)GD25-040-12630 (13.6)
60 x 126 (1524 x 3200)3/32" (2.5mm)GD25-060-12646 (20.9)
120 x 126 (3048 x 3200)3/32" (2.5mm)GD25-120-12691 (41.3)
60 x 63 (1524 x 1600)1/8" (3.0mm)GD30-060-06327 (12.2)
40 x 126 (1016 x 3200)1/8" (3.0mm)GD30-040-12636 (16.3)
60 x 126 (1524 x 3200)1/8" (3.0mm)GD30-060-12655 (24.9)
120 x 126 (3048 x 3200)1/8" (3.0mm)GD30-120-126109 (49.4)