Pressure Equalization Membrane
Pressure Equalization Membrane Technology
Pressure equalization membranes are designed to balance internal and external air pressure while preventing water, dust, and contaminants from entering sealed electronic devices.
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.
How It Works
The membrane allows air molecules to pass while blocking liquid water and particles.
Key Benefits
- Prevents housing deformation
- Improves device durability
- Maintains sealing performance
Applications
- Automotive Electronics
- Outdoor Lighting
- Industrial Sensors
Related Products
Related guide: See the complete Pressure Equalization Vent Membrane overview for material comparisons, selection criteria, and application design.