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Expanded PTFE sheet


Expanded PTFE gasket sheet is made of 100% expanded P.T.F.E. by using special process that produces a uniform and highly fibrillated microstructure with a great lot of fibers running in multidirection. These create a soft and pliable, yet very tough gasket that has excellent resistance of pressing, creep relaxation and cold flow.

 

Expanded PTFE sheet possesses universal resistance against common chemicals, except melted alkali metal, fluorine at liquid and gas states. It can be stored without any time limits and can seal uneven and damaged flanges

 

- full chemical resistance like solid sintered PTFE

- resistance against acids and bases of pH 0 to 14

- UV-resistant

- no aging, unlimited shelf life

- nontoxic, biologically inert

- non flammable

Specification of expanded ptfe sheets

Model

Thickness (mm)

Tolerance  (mm)

Size  (mm)

Tolerance  (mm)

WXXJ-05-E

0.5

±0.10

1500X1500

±10

WXXJ-10-E

1.0

±0.15

WXXJ-15-E

1.5

±0.20

WXXJ-20-E

2.0

±0.20

WXXJ-30-E

3.0

±0.30

WXXJ-40-E

4.0

±0.30

WXXJ-50-E

5.0

±0.30

WXXJ-60-E

6.0

±0.30


 we can develop customized product to meet your specific needs.

Special Features

• best adaptation on uneven surfaces and affected sealing faces

• for sealing of stress sensitive material like glass lined steel, glass, ceramic*

• long lasting gasket solution for extreme aggressive Media

 

Suitable for use against :-

Acids      Alkalis     Corrosive Fluids       Oils       Solvents

 

For use in the following industries

Food & Beverage     Pharmaceutical     Chemical     Petrochemical     Distillery

Marine     Power Generation     Paper

 

Physical Properties of expanded ptfe sheets

Length Tensile Strength 17.0MPa
Cross Tensile Strength        17.0MPa
Compressive Strength 17.0MPa
Max Compressive Strength 17.0MPa
Gravity                0.65~0.95g/cm³ 
Compression WXXJ 45%      JB/T10688-2006  40%~50%
Recovery WXXJ 15%      JB/T10688-2006  >10% 
Leakiness (cm³/s) WXXJ 0.1~0.2x10-4     JB/T10688-2006  <0.1x10-3
Temperature      -240~260°C

1

Expanded PTFE Sheet is a high performance sheet gasket material made of multi-directionally expanded virgin PTFE. It is a soft, form-in-place gasket material that conforms to almost any sealing surface. It is capable of withstanding a wide range of pressure, temperature and chemical environments. Due to its highly fibrillated microstructure, it has excellent creep resistance compared with other PTFE products.

 

Typical Application
> Distilleries, petrochemical, food and beverage, pharmaceutical, general chemical, power generation, iron and steel manufacturing, pulp and paper, etc.

 

 


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