The E-PTFE Waterproof Acoustic Membrane is engineered to deliver exceptional acoustic transparency while providing strong waterproof, dustproof, and environmental protection. Manufactured from advanced expanded PTFE, this E-PTFE Acoustic Membrane combines high breathability with reliable ingress resistance, making it an ideal choice for modern electronic devices, automotive components, outdoor communication tools, and industrial equipment.
Designed for manufacturers seeking high-performance solutions, this Waterproof Acoustic Membrane offers outstanding durability, long service life, and consistent acoustic clarity under challenging environmental conditions. Whether you are searching for an E-PTFE membrane manufacturer, a PTFE acoustic vent supplier, or a Waterproof Acoustic Membrane factory, this product ensures the performance your application requires.
Our E-PTFE Membrane is a microporous, highly breathable film that functions as both an Acoustic Vent Membrane and a Waterproof Venting Membrane. By allowing sound to pass through with minimal distortion while blocking water, dust, and contaminants, the membrane ensures stable device performance even under harsh outdoor or industrial environments.
Featuring IP67 and IP68 protection levels, this PTFE Acoustic Membrane is widely used in microphone ports, speakers, acoustic sensors, and communication devices. Its high breathability prevents internal pressure buildup, making it perfect as a waterproof breathable acoustic membrane and an acoustic vent for electronics.

Key Features
1. Superior Waterproof Protection
IP67 and IP68 ingress resistance protects sensitive components from rain, splashes, immersion, and dust intrusion.
Acts as a durable PTFE Waterproof Membrane that withstands real-world environmental challenges.
2. High Acoustic Transparency
Ensures low distortion and excellent clarity, ideal for PTFE membranes for acoustic devices such as microphones, speakers, wearables, and sensors.
Optimized design minimizes sound loss for high-fidelity performance.
3. Breathable & Pressure-Equalizing
The microporous structure provides high air permeability, preventing pressure buildup in sealed enclosures.
Functions perfectly as a Waterproof Venting Membrane and Acoustic Vent Membrane for outdoor devices.
4. Temperature & Chemical Resistance
Operating range: -40°C to +125°C
Resistant to oils, chemicals, UV exposure, and environmental aging.
Delivers stable long-term use in demanding environments.
5. Customizable Solutions
Available in multiple thicknesses, diameters, and mounting formats (adhesive backing, frames, ultrasonic welding).
Supported by Acoustic membrane OEM and ODM acoustic membrane services.
Ideal for brands seeking Custom PTFE Acoustic Membrane solutions tailored to their applications.
Technical Specifications
| Parameter | Details |
|---|
| Material | Expanded PTFE (E-PTFE) |
| Protection Grade | IP67 / IP68 |
| Acoustic Performance | High clarity, low distortion |
| Air Permeability | Highly breathable |
| Operating Temperature | -40°C to +125°C |
| Thickness Options | 0.1 mm – 0.5 mm |
Applications
1. Consumer Electronics
Perfect as an acoustic vent for electronics such as:
Ensures excellent sound performance while preventing water intrusion.
2. Automotive Electronics
Provides durable protection for:
3. Outdoor & Rugged Equipment
Ideal for products requiring weather-resistant Waterproof Acoustic Membrane protection:
Walkie-talkies
GPS trackers
Outdoor security systems
Action cameras
4. Industrial & Commercial Devices
Used in:
5. Medical Devices
Ensures sound clarity for:
Benefits
Optimal Sound Quality: High acoustic transparency delivers accurate, crisp audio.
Reliable Environmental Protection: Shields devices from water, dust, and temperature fluctuations.
Extended Longevity: Durable construction ensures prolonged device life.
Flexible Customization: Full OEM/ODM support from a trusted E-PTFE venting membrane supplier and E-PTFE membrane supplier.
Competitive PTFE Membrane Price: Suitable for both high-end devices and large-volume production as wholesale waterproof acoustic membrane.
Why Choose Our Membranes?
As a professional E-PTFE membrane manufacturer and Waterproof acoustic membrane factory, we specialize in producing high-performance PTFE membranes that meet stringent global standards. Our engineering expertise and flexible customization options ensure a reliable, scalable solution for brands and device manufacturers worldwide.
If you need custom dimensions, adhesive options, or performance tuning, we can produce a Custom PTFE Acoustic Membrane that perfectly fits your project requirements.
FAQ – E-PTFE Waterproof Acoustic Membrane
1. What is an E-PTFE Waterproof Acoustic Membrane?
An E-PTFE Waterproof Acoustic Membrane is a high-performance protective material made from expanded PTFE. It allows sound to pass through with minimal distortion while blocking water, dust, and contaminants. It is commonly used as a Waterproof Acoustic Membrane, Acoustic Vent Membrane, or Waterproof Venting Membrane in electronic and industrial devices.
2. How does the membrane provide both waterproofing and sound transparency?
The membrane contains microporous structures that allow air and sound waves to pass freely while preventing water and particles from entering. This makes it ideal for PTFE membranes for acoustic devices such as microphones, speakers, and sensors.
3. What IP rating can E-PTFE Acoustic Membranes achieve?
Most of our E-PTFE Acoustic Membrane products support IP67 and IP68 protection levels, ensuring excellent water and dust resistance for outdoor and high-humidity applications.
4. What are the main applications of PTFE Acoustic Membranes?
They are widely used in:
Smartphones, earbuds, wearables
Automotive communication systems
Outdoor electronic equipment
Industrial monitoring devices
Medical acoustic instruments
These applications often require a waterproof breathable acoustic membrane or acoustic vent for electronics.
5. Do you support OEM or customized solutions?
Yes. As a professional E-PTFE membrane manufacturer, we offer Acoustic membrane OEM, ODM acoustic membrane, and Custom PTFE acoustic membrane services. We can customize size, thickness, bonding methods, adhesive types, and roll/sheet formats.
6. What is the thickness range of your PTFE Waterproof Membrane?
Standard thickness ranges from 0.1 mm to 0.5 mm, but custom specifications are available upon request.
7. How does air permeability affect device performance?
High air permeability helps equalize internal pressure, reducing the risk of condensation or damage to internal components. This is why PTFE is ideal as a Waterproof Venting Membrane for sealed enclosures.
8. What is the operating temperature range of the membrane?
Our high-performance PTFE membranes operate reliably from –40°C to +125°C, making them suitable for harsh outdoor and automotive environments.
9. Can these membranes resist chemicals or UV exposure?
Yes. The PTFE Waterproof Membrane is naturally chemical-resistant, UV-resistant, and suitable for long-term exposure in extreme environments.
10. Do you offer wholesale supply?
Absolutely. As an experienced E-PTFE venting membrane supplier and E-PTFE membrane supplier, we support wholesale waterproof acoustic membrane orders with stable supply chains and competitive PTFE membrane price.