Acoustic Waterproof Breathable Membrane
Mimoyin Technology Co., Ltd. is a professional manufacturer specializing in waterproof breathable membrane materials, including ePTFE, TPU, and PU solutions for automotive electronics, TWS audio devices, wearable technology, and industrial applications.
High-Performance Membrane Materials
Material Specifications Overview
| Parameter | ePTFE | TPU | PU |
|---|---|---|---|
| Thickness Range | 0.01 – 0.2 mm | 0.015 – 0.45mm | 0.01 – 0.03 mm |
| Waterproof Rating | IP67 / IP68 | IP65 – IP67 | IP65 – IP66 |
| Air Permeability | 300 – 15000 ml/min @ Ø10 mm orifice, 7 kPa | 200 – 2000 ml/min @ Ø10 mm orifice, 7 kPa | 100 – 1000 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 |
- ePTFE Membrane – Exceptional chemical resistance and waterproofing for automotive and industrial sealing. Learn more →
- TPU Membrane – Flexible, acoustic-friendly waterproof film for consumer electronics and wearables. Learn more →
- PU Membrane – Cost-effective breathable layer for general waterproof protection. Learn more →
Why Choose Mimoyin?
Our Manufacturing & Quality Control
Mimoyin operates Class 10,000 dust-free workshops with advanced lamination and die-cutting production lines. Our quality control process includes:
- Raw Material Inspection — Each batch of ePTFE, TPU, and PU films is tested for thickness uniformity and waterproof performance before production.
- In-Process QC — Real-time air permeability and pressure testing during die-cutting and lamination.
- Final Validation — IP67/IP68 water resistance testing, adhesion strength testing, and dimensional accuracy inspection before packaging.
Typical lead time: 3-5 working days for samples, 15-25 working days for mass production orders (MOQ negotiable).
- OEM & ODM Manufacturing Support – Custom shapes, sizes, and adhesive backing based on your drawings.
- Advanced Polymer Engineering – Microporous ePTFE, elastomeric TPU, and PU films engineered for demanding environments.
- Stable Mass Production System – Reliable delivery for both sampling and volume orders.
- Proven Waterproof & Acoustic Performance – IP67/IP68 protection with high sound transmission.
Core Technologies
- Waterproof Technology – IP67/IP68 protection systems for sealed enclosures.
- Acoustic Venting – Sound-permeable waterproof design for microphones and speakers.
- Pressure Balance – Internal pressure stabilization to prevent seal failure.
Technical Resources
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Get Custom Membrane Solutions
OEM / ODM services available. Contact our engineering team for technical consultation, free samples, and custom die-cutting solutions.