What Material Is ePTFE Waterproof Breathable Membrane
What Material Is ePTFE Waterproof Breathable Membrane
Type: Expanded PTFE Microporous Membrane
Feature: IP68 Waterproof, Two-way Pressure Balance
Advantage: Salt Spray Corrosion Resistant, Wide Temperature Tolerance, Stable Micropores Anti-clogging
Breathability & Water-Pressure Capability
| Tier | Breathability (ml/min @ Ø10 mm, 7 kPa) | Water pressure | Typical application |
|---|---|---|---|
| Low breathability (high waterproof) | 200–1,000 | 50–30 m | Deep-water / harsh waterproof; custom per spec |
| Mid (balanced) | 1,000–5,000 | 30–2 m | Automotive / general outdoor; custom per spec |
| High breathability | 5,000–12,000 | 10–1 m | High heat dissipation / low waterproof need; custom per spec |
Mimoyin does not sell fixed catalog SKUs. For each project we match the membrane material to your drawing and required breathability, acoustic loss, and water pressure, then produce samples for your validation testing.
What Material Is ePTFE Waterproof Breathable Membrane
Frequent condensation and shell bulging failures of all kinds of sealed electronic equipment, the core reason is unqualified breathable protective material.
If you want the equipment to achieve high waterproof and cavity pressure relief at the same time, ePTFE special microporous material is the mainstream choice in the industry.
Choosing inferior breathable materials will greatly increase maintenance costs, high-quality ePTFE raw materials can protect equipment stably for a long time.
II. Material Popular Science & Selection Guide (Build Professional Authority)
2026 Full Analysis of ePTFE Waterproof Breathable Membrane Material: PTFE Raw Material, Expansion Molding Process, Composite Structure.
Breathable Membrane Material Avoid Pitfall Guide: Performance Comparison of ePTFE, PU Film and Non-woven Fabric.
Pure ePTFE Film VS Composite Non-woven Breathable Membrane: Which Material Is Suitable for Long-term Outdoor Working Conditions?
