PU Waterproof Breathable Membrane Solutions

PU Waterproof Breathable Membrane Solutions

Introduction

PU (Polyurethane) waterproof breathable membrane is a cost-effective material widely used in general industrial and electronic protection applications.

It provides basic waterproof, dustproof, and breathable performance, making it suitable for large-scale and cost-sensitive product designs.

What is PU Waterproof Breathable Membrane?

PU membrane is a polyurethane-based film material designed to allow air and moisture vapor transmission while blocking water and dust particles.

It is commonly used in applications where cost efficiency and basic protection are required.

Key Features of PU Membrane

Cost-effective waterproof protection solution
Basic breathable performance
Suitable for mass production applications
Good compatibility with general industrial materials
Lightweight and flexible structure

Applications of PU Waterproof Membrane

General consumer electronics
Low-cost wearable devices
Industrial protective equipment
Non-critical electronic housings
Basic waterproof sealing systems

How PU Membrane Works

PU membrane acts as a basic barrier that prevents water and dust from entering while allowing limited air and vapor exchange.

It is suitable for applications that do not require high-end acoustic or extreme environmental protection performance.

Benefits of PU Waterproof Membrane

Low cost solution for large-scale production
Basic waterproof and dustproof protection
Easy integration into product design
Suitable for non-critical applications
Stable supply chain availability

PU vs TPU vs ePTFE

PU: Lowest cost, basic protection, general applications
TPU: Balanced performance, ideal for consumer electronics
ePTFE: High-end, industrial-grade durability

PU membranes are best suited for cost-sensitive products where advanced performance is not required.

Need PU Membrane Solutions?

Frequently Asked Questions

What waterproof rating do your membranes achieve?

Our ePTFE waterproof breathable membranes achieve IP67 and IP68 protection grades. They withstand immersion at 1 meter depth for 30 minutes (IP67) and continuous submersion (IP68), while maintaining stable airflow for pressure equalization.

Can you provide custom sizes and die-cutting shapes?

Yes, we offer full custom die-cutting services. We can produce membranes in any size or shape according to your specifications, including round, rectangular, and complex custom geometries. Our Class 10,000 cleanroom ensures precision cutting for production volumes.

What is the minimum order quantity (MOQ)?

We support both prototyping and mass production. Free samples are available for testing with 3-5 working days delivery. For mass production, MOQ is flexible depending on the product specification and can be discussed based on your project requirements.

What industries and applications do your membranes serve?

Our membranes are widely used in automotive electronics, lithium batteries, smart wearables, consumer electronics, LED lighting, medical devices, and industrial sensors. Applications include speaker acoustic vents, pressure balance vents, microphone waterproof membranes, and battery venting solutions.

How long is the delivery time for samples and mass production?

Free samples are delivered within 3-5 working days via express shipping. Mass production typically takes 7-15 working days depending on order quantity and customization requirements. We provide one-stop technical support from sample testing to mass production.