PU Waterproof Breathable Membrane
PU Waterproof Breathable Membrane
PU (Polyurethane) waterproof breathable membrane is a cost-effective material widely used in textile and general waterproof applications. It provides moderate waterproof and breathable performance with good durability.
Breathability & Water-Pressure Capability
| Tier | Breathability (ml/min @ Ø10 mm, 7 kPa) | Water pressure | Typical application |
|---|---|---|---|
| Low breathability (high waterproof) | 200–1,000 | 50–30 m | Deep-water / harsh waterproof; custom per spec |
| Mid (balanced) | 1,000–5,000 | 30–2 m | Automotive / general outdoor; custom per spec |
| High breathability | 5,000–12,000 | 10–1 m | High heat dissipation / low waterproof need; custom per spec |
Mimoyin does not sell fixed catalog SKUs. For each project we match the membrane material to your drawing and required breathability, acoustic loss, and water pressure, then produce samples for your validation testing.
Key Features
- Low cost solution for mass production
- Moderate waterproof and breathability
- Good adhesion to textile fabrics
- Widely used in garment industry
Applications
- Rainwear and fashion jackets
- Textile and fabric lamination
- Protective covers and bags
- General waterproof industrial use
PU vs TPU
Compared with TPU membranes, PU is more economical but has lower durability and flexibility.
Related Solutions
Explore our waterproof breathable membrane guide to compare TPU, PU and ePTFE materials.
Related guide: See the complete Waterproof Breathable Membrane overview for material comparisons, selection criteria, and application design.