Waterproof Venting Membrane

The Waterproof Venting Membrane is an advanced protective material engineered to balance airflow, waterproofing, and pressure equalization. As a professional venting membrane manufacturer, we specialize in EPTFE membrane vents that allow gases and moisture vapor to escape from sealed enclosures while blocking water, dust, and contaminants.
Our vent membranes are widely used in automotive electronics, outdoor lighting, sensors, communication devices, and other sealed systems that require reliable protection under harsh environmental conditions.

Key Features

• Waterproof & Breathable Protection – The ePTFE venting membrane ensures effective moisture vapor transmission while achieving IP65–IP68 waterproof performance.

• Pressure Equalization – Balances internal and external pressure in sealed housings, preventing condensation and component failure.

• High Chemical & Temperature Resistance – Suitable for challenging environments with temperatures from -50°C to +250°C.

• Durable and Stable Performance – Long-lasting protection against UV, oil, and corrosion, ideal for outdoor and automotive applications.

• Custom Design Options – Available in rolls, sheets, die-cut parts, or assembled vent caps for specific project requirements.

Manufacturing Process

Our EPTFE Membrane vents are manufactured through a series of precision processes to ensure superior performance and reliability:

1. Microporous Expansion of ePTFE Film – Creates uniform pores for optimized air permeability and waterproofing.

2. Lamination & Adhesive Backing – Enhances mechanical stability and ease of installation.

3. Die-Cutting / Punching – Customizable shapes and sizes for venting applications.

4. Performance Testing – Each venting membrane undergoes rigorous waterproof, airflow, and aging tests to meet international standards.

Material Selection

• ePTFE (Expanded Polytetrafluoroethylene): Offers high hydrophobicity, chemical resistance, and excellent airflow.

• PTFE (Polytetrafluoroethylene): Provides durable protection in extreme conditions.

• Adhesive Options: High-performance acrylic or silicone adhesives for easy installation on metal, plastic, or composite surfaces.

Applications

Our waterproof venting membranes are trusted across diverse industries, including:

• Automotive: Headlights, sensors, battery packs, and control units.

• Electronics: Communication equipment, smart home devices, and wearable products.

• Outdoor Lighting: LED street lights, floodlights, and landscape lamps.

• Medical Equipment: Protective venting for sensitive electronic Instruments.

• Industrial & Marine Devices: Enclosures exposed to humidity, temperature changes, or pressure fluctuations.

Why Choose Us

As a leading venting membrane manufacturer in China, we provide:

• Custom ePTFE vent solutions for OEM and ODM projects.

• Stable quality control and ISO-certified production.

• Professional technical support and rapid delivery.

• Flexible production from prototype to large-scale manufacturing.