Waterproof Breathable Membranes | ePTFE TPU Solutions
High-Performance ePTFE Waterproof Breathable Membranes
Custom die-cut waterproof breathable membranes and acoustic vent membranes for automotive electronics, TWS earbuds, wearables, and industrial applications. IP67/IP68 protection with minimal sound loss.
Membrane Products
Custom per specification — material, thickness, permeability, and adhesive matched to your drawing
ePTFE Waterproof Vent Membrane
IP67/IP68 waterproofing, -40°C to +260°C temperature range, 300–15,000 ml/min air permeability. The industry standard for automotive and industrial sealing.
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Acoustic Waterproof Membrane
Sound-permeable waterproof membrane with ≤1 dB acoustic loss for microphones, speakers, and TWS earbuds. IP67 protection without compromising audio quality.
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Pressure Equalization Vent Membrane
Internal pressure balance for sealed enclosures. Prevents seal failure and condensation in automotive electronics, outdoor devices, and industrial sensors.
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TPU Waterproof Breathable Film
Flexible, acoustic-friendly waterproof film for wearables and consumer electronics. IP65–IP67 protection with excellent sound transmission characteristics.
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PU Waterproof Breathable Membrane
Cost-effective breathable layer for general waterproof protection. IP65–IP66 rated, ideal for consumer electronics and applications requiring moderate permeability.
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Custom Die-Cut ePTFE Components
Custom shapes, sizes, and adhesive backing per your drawing. OEM/ODM die-cutting with tight tolerances for automotive, audio, and wearable applications.
Learn More →Why Choose Mimoyin?
A decade of membrane manufacturing expertise, now serving global B2B buyers
10+ Years in Membrane Manufacturing
Over a decade of experience in die-cutting ePTFE, TPU, and PU waterproof breathable membranes for electronics applications.
OEM & ODM Custom Manufacturing
Custom shapes, sizes, and adhesive backing based on your drawings. Free samples in 3–5 working days, flexible MOQ.
Strict Quality Control & Full Traceability
In-process air permeability, water resistance, and dimensional checks on every batch. Full traceability from raw material to finished die-cut components.
Class 10,000 Cleanroom Production
Dust-free workshops with advanced lamination and die-cutting lines. In-process QC and IP67/IP68 final validation on every batch.
Membrane Material Comparison
ePTFE vs TPU vs PU — choose the right material for your application
| Parameter | ePTFE | TPU | PU |
|---|---|---|---|
| Thickness Range | 0.01 – 0.2 mm | 0.015 – 0.45 mm | 0.01 – 0.03 mm |
| Waterproof Rating | IP67 / IP68 | IP65 – IP67 | IP65 – IP66 |
| Air Permeability | 300 – 15,000 ml/min @ Ø10 mm orifice, 7 kPa | 200 – 2,000 ml/min @ Ø10 mm orifice, 7 kPa | 100 – 1,000 ml/min @ Ø10 mm orifice, 7 kPa |
| Temperature Range | -40°C to +260°C | -30°C to +80°C | -40°C to +120°C |
| Typical Applications | Automotive, Industrial | Wearables, Audio | Consumer Electronics |
All specifications are custom per drawing. Send your requirements for material selection and free samples.
Technical FAQ
Common questions from B2B buyers about Mimoyin waterproof membrane solutions
What waterproof breathable membranes does Mimoyin manufacture?
ePTFE, TPU, and PU microporous membranes for IP67/IP68 protection, custom die-cut for automotive, TWS audio, and wearable electronics.
What industries do your membranes serve?
Automotive electronics, TWS earbuds, smart wearables, consumer electronics, medical devices, microphones and speakers, and industrial sensors.
Can you match a membrane to my specification?
Yes. Send your drawing with required breathability, acoustic loss, and water pressure; we select the material and produce die-cut samples for validation.
What is the minimum order quantity?
Prototyping is supported with free samples (3–5 day delivery); mass-production MOQ is flexible per specification.
What waterproof ratings are achieved?
IP67 and IP68, with ePTFE grades resisting equivalent water pressure up to 50 m.
Industry Applications
Waterproof membrane solutions across electronics industries
Automotive Electronics
ECU housings, sensor seals, pressure equalization
TWS Earbuds & Audio
Speaker vents, mic protection, acoustic tuning
Smart Wearables
Watch seals, sensor covers, breathability
Outdoor Electronics
Lighting seals, connector protection, venting
Industrial Sensors
Pressure sensors, gas detectors, enclosures
Microphones & Speakers
Mic vents, speaker protection, acoustic mesh
Manufacturing & Quality Control
From raw material inspection to IP67/IP68 final validation
Class 10,000 Cleanroom
Dust-free workshops with advanced lamination and die-cutting production lines for contamination-free membrane processing.
Precision Die-Cutting
Custom shapes and sizes with tight tolerances. Adhesive backing application per your drawing specifications.
In-Process QC
Real-time air permeability and pressure testing during die-cutting and lamination. Each batch traced from raw material to finished product.
IP67/IP68 Final Validation
Water resistance testing, adhesion strength testing, and dimensional accuracy inspection on every batch before packaging.
Certifications & Compliance
Quality standards for global B2B supply
Technical Resources
Deep-dive guides to help you select the right membrane
ePTFE vs TPU Membrane: Complete Comparison Guide
Detailed comparison of ePTFE and TPU membranes across waterproof rating, permeability, temperature range, and acoustic performance.
Read More →How Waterproof Membranes Work
The science behind microporous membrane technology — how ePTFE and TPU films block water while allowing air and sound to pass.
Read More →IP67 vs IP68 Explained
What do IP67 and IP68 ratings actually mean for your product? Ingress protection standards explained for electronics engineers.
Read More →Breathability – Waterproof Calculator
Free interactive tool: estimate water-resistance (meters) from airflow, or size the right membrane for your IP67/IP68 target.
Open Calculator →Mimoyin Technology
Specialized manufacturer of ePTFE, TPU, and PU waterproof breathable membranes for automotive electronics, TWS audio, wearables, and industrial sensors. Custom die-cutting per your drawing. 10+ years in membrane manufacturing.
Products
Contact
Shenzhen Mimoyin Technology Co., Ltd.
Get Your Custom Membrane Solution
Free samples, technical consultation, and custom die-cutting per your drawing. Engineer review with quote within 24 hours.