PTFE Products

Expanded PTFE

Expanded PTFE


Expanded PTFE

Technical Specification

100% multi-directionally expanded PTFE (polytetrafluoroethylene). Expanded PTFE has better creep resistance properties compared to skived/sintered/normal PTFE due to higher tensile strength.

Suitable for 

SPITMAAN® EPT 200 expanded gasket sheet material is suitable for practically all applications in process industries within the temperature and pressure range.

Appropriate Medium

Steel & Iron, Fertiliser, Refinery, Chemical, Paper & Pulp, Sugar, EPC, Pharmaceutical, Power, Textile, OEM, Petrochemical, Food.

Features & Benefits

  • 100% Expanded PTFE
  • Minimum Creep
  • Dimensionally Stable
  • High Purity of Product 
  • Easy to Install
  • Easy removal of gasket

Product Sizes

  • 1500 mm X 1500 mm sheet size
  • 1 mm, 1.5 mm, 2 mm, 3 mm, 5 mm, 6 mm

Notes

For applications outside the typical use range, SPITMAAN® recommends engineering design calculation to specific application and extra care to be taken during installation. Uniform torquing during installation using ASME recommended methodology is mandatory. Retorquing after a thermal cycle should be done after cooling down of equipment is recommended. Please contact SPITMAAN® if further guidance is required.

Except molten alkali metals and elemental fluorine. 

Technical Data

Property Value
Minimum Temperature -450°F ( -268°C) ºC
Maximum Temperature 500°F (260°C) ºC
Short Term Temperature 600°F (315°C) ºC
Pressure Vaccum up to 2900 psi (200 bar) Pa
pH Range2 0-14 Pa
Compressibility 50%m
Recovery 14%mm
Tensile Strength 21 Mpa kg/m³
Stress retention 15 MPA/6 Mpa (RT/200°C) Pa
Specific Leak Rate 2.6 x 10-7%
Design Factor "m" 2 (for 3 mm) Pa
Design Factor "y" 2800 (for 3 mm) psi cm²·s·cmHg