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.
Custom per specification — material, thickness, permeability, and adhesive matched to your drawing
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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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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Internal pressure balance for sealed enclosures. Prevents seal failure and condensation in automotive electronics, outdoor devices, and industrial sensors.
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Flexible, acoustic-friendly waterproof film for wearables and consumer electronics. IP65–IP67 protection with excellent sound transmission characteristics.
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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 shapes, sizes, and adhesive backing per your drawing. OEM/ODM die-cutting with tight tolerances for automotive, audio, and wearable applications.
Learn More →A decade of membrane manufacturing expertise, now serving global B2B buyers
Over a decade of experience in die-cutting ePTFE, TPU, and PU waterproof breathable membranes for electronics applications.
Custom shapes, sizes, and adhesive backing based on your drawings. Free samples in 3–5 working days, flexible MOQ.
In-process air permeability, water resistance, and dimensional checks on every batch. Full traceability from raw material to finished die-cut components.
Dust-free workshops with advanced lamination and die-cutting lines. In-process QC and IP67/IP68 final validation on every batch.
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.
Common questions from B2B buyers about Mimoyin waterproof membrane solutions
ePTFE, TPU, and PU microporous membranes for IP67/IP68 protection, custom die-cut for automotive, TWS audio, and wearable electronics.
Automotive electronics, TWS earbuds, smart wearables, consumer electronics, medical devices, microphones and speakers, and industrial sensors.
Yes. Send your drawing with required breathability, acoustic loss, and water pressure; we select the material and produce die-cut samples for validation.
Prototyping is supported with free samples (3–5 day delivery); mass-production MOQ is flexible per specification.
IP67 and IP68, with ePTFE grades resisting equivalent water pressure up to 50 m.
Waterproof membrane solutions across electronics industries
ECU housings, sensor seals, pressure equalization
Speaker vents, mic protection, acoustic tuning
Watch seals, sensor covers, breathability
Lighting seals, connector protection, venting
Pressure sensors, gas detectors, enclosures
Mic vents, speaker protection, acoustic mesh
From raw material inspection to IP67/IP68 final validation
Dust-free workshops with advanced lamination and die-cutting production lines for contamination-free membrane processing.
Custom shapes and sizes with tight tolerances. Adhesive backing application per your drawing specifications.
Real-time air permeability and pressure testing during die-cutting and lamination. Each batch traced from raw material to finished product.
Water resistance testing, adhesion strength testing, and dimensional accuracy inspection on every batch before packaging.
Quality standards for global B2B supply
Deep-dive guides to help you select the right membrane
Detailed comparison of ePTFE and TPU membranes across waterproof rating, permeability, temperature range, and acoustic performance.
Read More →The science behind microporous membrane technology — how ePTFE and TPU films block water while allowing air and sound to pass.
Read More →What do IP67 and IP68 ratings actually mean for your product? Ingress protection standards explained for electronics engineers.
Read More →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.
Shenzhen Mimoyin Technology Co., Ltd.
Free samples, technical consultation, and custom die-cutting per your drawing. Engineer review with quote within 24 hours.