Durlon ® 9600

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ASTM F104: F428111-A9B5

Equivalent to NES 5420 / Teadit ###

DURLON® 9600 is an EXPANDED PTFE gasket material designed for use in process piping and equipment in chemical, pulp and paper, food and beverage and other general industrial applications where resistance to highly aggressive chemicals is required.

DURLON® 9600 is suitable for use in steel flanges and flanges with irregular surfaces. Style 9600 conforms to FDA requirements.

DURLON® 9600 is made with only pure PTFE resins. It is suitable for use in steel flanges and as well as flanges where a highly compressible gasket is required. DURLON® 9600 is also suitable for sealing flanges with irregular surfaces. It will not exhibit the cold flow problems associated with virgin PTFE or the hardness problems of some other filled PTFE products. It has excellent sealability, cuts easily and separates cleanly from flanges after use.


Available Sheet Sizes:

Nominal Thickness
Sheets Sizes
Order Code - 9200w
  Weight / Sheet lbs (kg)
Inches mm
1.0 mm 60 x 60 1524 x 1524 EX10-060-060   4 (1.8)
1/16" (1.5 mm) 60 x 60 1524 x 1524 EX15-060-060   7 (3.2)
1/8" (3.0 mm) 60 x 60 1524 x 1524 EX30-060-060   14 (6.4)
1/4" (6.0 mm) 60 x 60 1524 x 1524 EX60-060-060   28 (12.7)

Note: 1mm thickness or, 60" x 120" (1.5m x 3m) sheet sizes available on special order, other custom lengths available on request.

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.


M&Y and Proposed ASTM Gasket Constants:

Thickness 1/16"
Gasket Constants    
Gb psi (MPa) 1200 (8.27) 1400 (9.65)
a 0.2 0.19
Gs psi (MPa) 3.5 (0.024) 1.5 (0.01)

*Gasket Constants based on proposed ASTM Draft 10.01


Typical Properties:

Color: White, Branded
Temperature -350 to 600° F (-212 to 316° C)
Pressure, max: 1800 psig (124 bar)
Fluid Service: Steam, Strong Acids, Strong Caustics, Aqueous and Anhydrous Hydrogen Fluoride
Density:  0.8 g/cm3 (49.9 lbs. / ft3)
Compressibility, ASTM F36: 50 % 
Recovery ASTM F36: 12%
          ASTM F37 (Fuel A):
          ASTM F37 (Nitrogen):

0.01 m/hr
0.02 m/hr
DIN 3535 Gas Permeability:  0.01 cc/min
Creep Relaxation ASTM F38:  30%
*Conforms to the requirements of 21 CFR 177.1550 for food and drug contact.
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.