PUW EPTFE Material Co., Ltd. It is a high-tech company integrating R&D, production, sales and service.
The company introduces international advanced technology and focuses on the development and application of expanded polytetrafluoroethylene (PTFE).
Model: PUW898
Our Waterproof Venting Membrane is engineered from advanced expanded PTFE (ePTFE) material, delivering outstanding waterproofing and superior breathability. This high-performance Waterproof Breathable Venting Membrane allows moisture vapor to escape while preventing water intrusion, ensuring both protection and pressure equalization in sensitive equipment. Designed as a Waterproof and Air Permeable Membrane, it provides long-lasting performance even in extreme environments.
By combining imported raw materials with precision manufacturing, our membrane offers durability, stability, and versatile applications across multiple industries, including outdoor gear, electronic enclosures, automotive electronics, medical devices, lighting systems, and industrial equipment.
High Waterproof & Dustproof Performance
Rated up to IP68, this Water-Resistant Venting Membrane is completely dust-tight and resistant to powerful water jets, making it ideal for outdoor and marine environments.
Hydrophobic & Oil-Repellent
Our Waterproof Vapor Permeable Membrane is hydrophobic, preventing water ingress, and oil-repellent, blocking oil contamination that can compromise equipment integrity.
Efficient Moisture and Steam Expulsion
As a Vapor Venting Waterproof Membrane, it rapidly releases condensation and steam, preventing corrosion, mold, and component failure.
Chemical Resistance & UV Stability
Built with strong chemical inertness, the Moisture-Proof Venting Membrane withstands acids, solvents, and long-term UV exposure, ensuring reliable performance in harsh industrial or outdoor conditions.
Pressure Equalization for Sealed Systems
Functioning as a Waterproof Pressure Equalizing Membrane, it balances internal and external pressure, reducing stress on sealing components and preventing leaks.
Gas Permeability with Waterproof Integrity
Our Waterproof Gas Permeable Membrane maintains gas exchange while keeping water out, a critical feature for electronics, sensors, and battery systems.
1.Protection for Sensitive Electronic Components and Products
The membrane provides crucial protection for sensitive electronics by preventing moisture, dust, and other harmful contaminants from entering the casing. This enhances the longevity and reliability of electronic devices, preventing damage to internal components.
2.Long Service Life in Extreme Environments
The membrane’s durability ensures it remains maintenance-free and performs reliably in extreme environments. It does not degrade or fail over time, offering a long service life even in harsh conditions, such as high humidity, salt exposure, or extreme temperatures.
3.Reduction in Salt Corrosion
The membrane greatly reduces electronic and inductance product failures caused by salt corrosion, making it ideal for use in coastal or marine environments where saltwater exposure is a concern. This significantly improves the reliability of the products in such settings.
4.Prevention of Fogging and Condensation
By allowing prompt moisture expulsion, the membrane helps prevent fogging and condensation inside enclosures. This ensures that sensitive electronic components and displays remain clear and functional, even in humid or fluctuating temperature environments.
5.Pressure Balancing for Improved Sealing
The membrane helps balance internal and external pressure within enclosures. This reduces the stress on sealing strips and improves the overall sealing performance, preventing leaks and enhancing the integrity of the product’s casing.
Lighting Systems: Outdoor lamps, LED fixtures, and solar lights
Electronics & Enclosures: Communication equipment, control panels, and precision electronics
Automotive Electronics: Sensors, control modules, and lighting units
Outdoor & Marine Gear: Tents, waterproof clothing, sports equipment
Industrial Equipment: Chemical processing, heavy-duty machinery
Medical Devices: Equipment requiring sterile, sealed, yet breathable protection
1.install the breathable membrane is required to bring gloves , ensure that the mounting surface clean, no oil, and other pollutants.
2.Using tweezers t operate the installation, to ensure that the membrane permeability and regional center target alignment.
3.Once the installation is completed , not to move again.
4.After the installation is finished , should be place 24 hours, then use.
| Model | Protection level | Air penneability | Color | Thickness | Temmperature Range |
| PUW878W | IP65 | 4000-5000ml/cm²/min@7kpa | white | 0.13±0.03 | -50℃~100℃ |
| PUW316 | IP66 | 3700-5000ml/cm²/min@7kpa | white | 0.20±0.03 | -50℃~130℃ |
| PUW575 | IP66 | 2200-3200ml/cm²/min@7kpa | white | 0.28±0.03 | -50℃~120℃ |
| PUW875 | IP66 | 3000-4000mVcm³/min@7kpa | white | 0.24~0.30 | -50℃~130℃ |
| PUW317 | IP67 | 2000-3500ml/cml/min@7kpa | white | 0.18±0.03 | -50℃~130℃ |
| PUW576 | IP67 | 1000-1500ml/cm²/min@7kpa | white | 0.15±0.05 | -50℃~130℃ |
| PUW657 | IP67 | 170-350ml/cm²/min@7kpa | white | 0.08-0.14 | -50℃~100℃ |
| PUW867 | IP67 | 1900-2400ml/cmi/min@7kpa | white | 0.15±0.04 | -50℃~130℃ |
| PUW871 | IP67 | 400-1000ml/cm²/min@7kpa | white | 0.13±0.03 | -50℃~100℃ |
| PUW872 | IP67 | 2000-3000ml/cm²/min@7kpa | black | 0.13±0.03 | -50℃~100℃ |
| PUW876 | IP67 | 300-600ml/cm²/min@7kpa | white | 0.09-0.15 | -50℃~150℃ |
| PUW302W | IP68 | 2900-3400ml/cm²/min@7kpa | white | 0.02±0.01 | -50℃~250℃ |
| PUW310G | IP68 | 100-350ml/cm²/min@7kpa | dark grey | 0.20±0.03 | -50℃~250℃ |
| PUW318 | IP68 | 800-1700ml/cm²/min@7kpa | white | 0.20±0.03 | -50℃~130℃ |
The above is part of the product data.If you want to know more information or customize production,please contact with our staff.
Our Breathable Waterproof Membrane combines the waterproof performance of a sealed system with the breathability required for moisture management. Whether you need a Water-Resistant Breathable Membrane for extreme outdoor lighting, a Moisture-Proof Venting Membrane for medical devices, or a Waterproof Gas Permeable Membrane for sensitive electronics, we deliver solutions backed by precision engineering, premium imported materials, and rigorous quality control.
1. What is a Waterproof Venting Membrane?
A Waterproof Venting Membrane is a high-performance barrier made from advanced ePTFE material. It prevents water and dust from entering while allowing air and water vapor to pass through, making it both waterproof and breathable.
2. How does a Waterproof Breathable Venting Membrane work?
The Waterproof Breathable Venting Membrane has microscopic pores that are too small for water droplets to pass through but large enough for air and water vapor molecules. This ensures moisture escapes without compromising waterproof protection.
3. What’s the difference between a Waterproof and Air Permeable Membrane and a Moisture-Proof Venting Membrane?
A Waterproof and Air Permeable Membrane allows both air and vapor to pass through, while a Moisture-Proof Venting Membrane focuses on preventing liquid water ingress while still letting vapor escape. Both are used to reduce condensation and protect sensitive components.
4. What IP ratings are available for your Waterproof Venting Film?
We offer models ranging from IP65 to IP68. These Water-Resistant Venting Membranes provide complete dust protection and resist water jets or full immersion, depending on the rating.
5. Can the Waterproof Vapor Permeable Membrane handle extreme temperatures?
Yes. Depending on the model, our membranes can operate from -50°C to +250°C without losing performance, making them ideal for outdoor, industrial, and automotive use.
6. What industries use Vapor Venting Waterproof Membranes?
Common applications include outdoor lighting, communication equipment, automotive electronics, marine systems, medical devices, sports gear, and chemical industry equipment.
Telephone: 0769-22850556
Email: lvch@puw-eptfe.com
Address: No.20, Wanjiang Industrial Street, Wanjiang District, Dongguan City, Guangdong Province, China
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