IP67/IP68 Waterproof Membrane | ePTFE Protection

IP67/IP68 Waterproof Membrane – ePTFE Solution for Sealed Electronics
What is IP67/IP68 Waterproof Membrane?
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An IP67/IP68 waterproof membrane is a microporous ePTFE film designed to protect sealed enclosures from water, dust and pressure buildup. Rated IP67 (1m/30min) or IP68 (continuous immersion), these membranes are widely used in automotive sensors, outdoor lighting, industrial electronics and TWS audio devices.
ePTFE Membrane for IP67/IP68 Protection
Our ePTFE waterproof membranes provide:
- IP67/IP68 certified water and dust protection
- ≤1dB acoustic loss for audio applications
- Rapid pressure equalization to prevent seal failure
- Custom die-cut shapes (circles, squares, rectangles)
- Operating range -40°C to 150°C
IP67 vs IP68 – Which Do You Need?
IP67: Protection against temporary immersion (1m water, 30min). Ideal for outdoor electronics, automotive sensors, industrial controls.

Frequently Asked Questions
What waterproof rating do your membranes achieve?
Our ePTFE waterproof breathable membranes achieve IP67 and IP68 protection grades. They withstand immersion at 1 meter depth for 30 minutes (IP67) and continuous submersion (IP68), while maintaining stable airflow for pressure equalization.
Can you provide custom sizes and die-cutting shapes?
Yes, we offer full custom die-cutting services. We can produce membranes in any size or shape according to your specifications, including round, rectangular, and complex custom geometries. Our Class 10,000 cleanroom ensures precision cutting for production volumes.
What is the minimum order quantity (MOQ)?
We support both prototyping and mass production. Free samples are available for testing with 3-5 working days delivery. For mass production, MOQ is flexible depending on the product specification and can be discussed based on your project requirements.
What industries and applications do your membranes serve?
Our membranes are widely used in automotive electronics, lithium batteries, smart wearables, consumer electronics, LED lighting, medical devices, and industrial sensors. Applications include speaker acoustic vents, pressure balance vents, microphone waterproof membranes, and battery venting solutions.
How long is the delivery time for samples and mass production?
Free samples are delivered within 3-5 working days via express shipping. Mass production typically takes 7-15 working days depending on order quantity and customization requirements. We provide one-stop technical support from sample testing to mass production.
