PTFE membrane is made from expended polytetrafluoroethylene which provides a superior chemical compatibility. 

Membrane

PTFE

Wettability

Hydrophobic/Hydrophilic

pH

1-14

Pore Size

0.01（for air）, 0.1, 0.22, 0.45,1.0, 3.0, 5.0μm

Color

White

Surface

Plain

Dimension

Φ13, Φ25, Φ47, Φ100, Φ150mm

Non-Fiber Releasing