PTFE Membrane

What is PTFE Membrane?

A PTFE membrane is a thin, porous film made from expanded polytetrafluoroethylene (ePTFE). This unique material is hydrophobic, highly chemical resistant, and allows air and vapor to pass through while blocking liquid water and particulates. Its key properties include excellent durability and a wide operating temperature range. Common applications include medical textiles (for sterility), industrial filtration,waterproof and breathable apparel (like GORE-TEX®), and venting for enclosures.

What are the PTFE Membrane products offered by Srilan?

Item	Weight (gsm)	Thickness （mm）	Efficiency and Pressure drop （TSI 8130A，0.3μm）
SLDH-BFE80/H11	80	0.4	≥95%，35-70Pa
SLDH-BFE80/H13	80	0.4	≥99.95%，95-140Pa
SLDH-BFE80/U16	80	0.4	≥99.9997%，240-300Pa

Why choose Srilan’s PTFE Membrane？

PTFE Membrane is the core product of Srilan. By choosing Srilan, you can benefit from the following:

Superior Chemical Resistance.Virtually inert, Srilan’s PTFE Membrane withstands almost all aggressive chemicals, acids, and solvents. This ensures reliable performance and longevity in harsh industrial processing and filtration environments.

Hydrophobic & Breathable.Srilan’s PTFE Membrane naturally repels water and oils while allowing air and vapor to pass through. This key property is fundamental for creating waterproof yet breathable effective vents.

Extreme Thermal Stability.Srilan’s PTFE Membrane operates consistently across a vast temperature range from -240°C to +260°C. This durability makes it ideal for demanding applications in filtration, aerospace, and electronics.

Superior Pleatability.Srilan’s PTFE membranes offer superior pleatability due to their inherent flexibility and strength. This allows for the creation of high-surface-area filter elements, maximizing filtration efficiency and dust holding capacity in compact designs.