Durlon® 9200

Durlon® 9200 is a filled PTFE gasket material designed for use in aggressive chemicals. Including caustics, hydrogen peroxide, sodium hypochlorite, nitric acid, liquors and digester in pulp and paper service. Applications In the chemical, pharmaceutical and plastics industries include butadiene, hydrofluoric acid, vinyl chloride, methyl methacrylates, and styrene. It is also used extensively in railroad tank-car applications and can be used where resistance to highly aggressive chemicals is required. Style 9200 (granite white, branded) conforms to FDA requirements.

Note: That as a class, PTFE gasket materials are not recommended in liquid oxygen services where there is thermal cycling due to thermal shock and the difference of the coefficient of expansion between PTFE and steel.

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Durlon® 9200W is a filled PTFE gasket material designed for use in aggressive chemicals. Including caustics, hydrogen peroxide, sodium hypochlorite, nitric acid, liquors and digester in pulp and paper service. Applications in the chemical, pharmaceutical, and plastics industries include butadiene, hydrofluoric acid, vinyl chloride, methyl methacrylates, and styrene. It is also used extensively in railroad tankcar applications and can be used where resistance to highly aggressive chemicals is required.

Durlon® 9200W is also used for hydrofluoric acid service at moderate concentrations and temperatures or where a barium sulfate filled PTFE gasket material is specified within a temperature range of –350°F to 520°F (-212°C to 271°C), or with pressure up to 1500 psi (10.3 MPa). Style 9200W (granite white, branded) conforms to FDA requirements.

Barium sulfate fillers are homogeneously blended with pure PTFE resins to give Durlon® 9200 its physical and mechanical properties. Independent testing has shown the fillers in Durlon® 9200 to be more evenly dispersed than filled PTFE with layered construction. The result is more consistent physical and mechanical properties without the voids, separation and chemical compatibility problems found in layered filled PTFE. It is suitable for use in steel flanges, will not exhibit the cold flow problems associated with virgin or generic skived PTFE or the hardness problems of some other filled PTFE products. It has excellent sealability, cuts easily and separates cleanly from flanges after use.
Color Granite White
Filler System Barium Sulfate
Temp. Min.
Temp. Max.
Continuous, Max
-212°C (-350°F)
271°C (520°F)
260°C (500°F)
Pressure, max, bar (psi) 103 (1,500)
Density, g/cc (lbs/ft3) 2.5 (156)
Compressibility, % 8-16
Recovery, % 35
Creep Relaxation, % 30
Tensile Strength, MPa (psi) 13.2 (1,920)
Sealability
ASTM 2378 (Nitrogen)
0.01 cc/min
Leakage, mbar .1 (m .5)
TA-Luft (VDI 2440)
iBar (14.5 psi)
@200°C (392°F)
1.89 x 10-5

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.

FDA Conforms to the requirements of 21 CFR 177.1550 for food and drug contact
TA-luft (VDI Guideline 2440) Approved Material
BAM oxygen service: gaseous & liquid Up to 260°C (500°F) at 52 bar (754 psi)
ABS-PDA & Pamphlet 95, the chlorine institute, DNV-GL Approved Material
RoHS Reach Declaration Compliant
1/16” 1/8”
m 1.5 4.2
Y psi (MPa) 952 (6.5) 827 (5.7)
Gb psi (MPa) 153 (1.1) 96 (0.66)
a 0.360 0.437
Gs psi (MPa) 15 (0.1) 14 (0.1)