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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 fibers and minerals combined with high-grade Nitrile NBR rubber. It exibits higher temperature limits than aramid based materials and the handling and cutting characteristics are greatly improved over carbon and glass fiber 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 PROPERTIES:

 

Color: Gold, branded
Fiber: Phenolic
Binder: Nitrile (NBR)
Fluid Services: Steam, Oils, Solvents, Caustics, Fuels, Dilute
Acids & Alkalis,Hydrocarbons, Refrigerants
Density: 1.7 g/cm3 (106 lbs./ft3)
Tensile Strength, ASTM F152: 1,800 psi (12.4 MPa)
Compressibility, ASTM F36: 8 to 16%
Recovery ASTM F36: 50%
Temperature
Range:
Continuous, max:

-100 to 800°F (-73 to 427°C)
554°F (290°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%
15%
Sealability
ASTM F37 (Fuel A):
ASTM F37 (Nitrogen):

0.01 mL/hr
0.3 mL/hr
Volume Resistivity, ASTM D257: 3.1 x 1013 ohm-cm
Dielectric Breakdown, ASTM D149: 14.6 kV/mm (371 V/mil)
DIN 3535 Gas Permeability: 0.03 cc/min
Creep Relaxation ASTM F38: 25%
Flexibility, ASTM F147: 8x

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.

Pressure - Temperature Information: PxT Chart

M&Y AND PROPOSED ASTM GASKET CONSTANTS:

 

THICKNESS

1/16"

1/8"

M
Y psi (MPa)

3.7
3515 (24.24)

3.0
4014 (27.68)

Gasket Constants
Gb psi (MPa)
a
Gs psi (MPa)


2000 (13.8)
0.194
340 psi (2.3)



*Gasket Constants based on proposed ASTM Draft 10.1

 

AVAILABLE SHEET SIZES:

 

Nominal
Thickness

Sheet Sizes
inches mm

Order Code

Sheets
Per Roll

Approx.
Weight/Sheet
lbs (kg)

1/64" 0.4mm

60 x 63
60 x 126

1524 x 1600
1254 x 3200

GD05-060-063
GD05-060-126

20
10

3 (1.4)
7 (3.2)

1/32" 0.8mm

60 x 63
60 x 126

1524 x 1600
1254 x 3200

GD08-060-063
GD08-060-126

20
10

7 (3.2)
14 (6.4)

1.0mm

60 x 63
60 x 126
120 x 126

1524 x 1600
1254 x 3200
3048 x 3200

GD10-060-063
GD10-060-126
GD10-120-126

20
10
5

9 (4.1)
19 (8.6)
37 (16.8)

1/16" 1.5mm

60 x 63
60 x 126
120 x 126

1524 x 1600
1254 x 3200
3048 x 3200

GD15-060-063
GD15-060-126
GD15-120-126

10
5
2

14 (6.4)
28 (12.7)
55 (25.0)

2.0mm

60 x 63
60 x 126
120 x 126

1524 x 1600
1254 x 3200
3048 x 3200

GD20-060-063
GD20-060-126
GD20-120-126

10
5
2

18 (8.2)
38 (17.2)
74 (33.6)

3/32" 2.5mm

60 x 63
60 x 126

1524 x 1600
1254 x 3200

GD25-060-063
GD25-060-126

8
4

20 (9.07)
39 (17.69)

1/8" 3.0mm

60 x 63
60 x 126
120 x 126

1524 x 1600
1254 x 3200
3048 x 3200

GD30-060-063
GD30-060-126
GD30-120-126

8
4
1

28 (12.7)
55 (25.0)
110 (50.0)

3/16" 5.0mm

60 x 63
60 x 126
120 x 126

1524 x 1600
1254 x 3200
3048 x 3200

GD50-060-063
GD50-060-126
GD50-120-126

4
2
1

42 (19.1)
83 (37.6)
165 (75.8)

Note: Please inquire about sizes and thicknesses 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.