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We are a professional manufacturer of waterproof breathable membranes, providing high-quality industrial-grade and building-grade products. Our membranes feature IP64-IP68 waterproof level, excellent breathability and durability, with customizable materials (ePTFE, PP, PE) and specifications. ISO/CE certified, we offer direct supply, stable delivery, full technical support, and after-sales service, widely used in industrial equipment, automobile, building enclosure, and other fields.
Waterproof Breathable Membrane Source Factory Direct Supply
1. Core Functions of Waterproof Breathable Membrane: Solving Core Pain Points of Sealing and Ventilation
The core value of a waterproof-breathable membrane is its selective permeability. Through its special microporous structure and hydrophobic properties, it blocks the intrusion of liquid water, dust, oil stains, and other impurities, while allowing gas and water vapor to pass freely. It fundamentally solves the three core pain points in sealed environments and ensures the long-term stable operation of equipment, structures, or products.

Analysis of Core Functions
Waterproof and Anti-pollution Protection: With its microporous structure (pore size smaller than liquid water molecules and larger than gas molecules) and hydrophobic properties, it effectively blocks the intrusion of external impurities such as rainwater, seawater, oil stains, and dust, reaching an IP64 or higher protection level, protecting internal structures or components from damage and reducing the risk of failure.
Ventilation and Moisture Removal Balance: It quickly discharges water vapor and hot air in the sealed space, avoiding internal condensation and bulging, balancing internal and external air pressure, relieving the stress of the sealed structure, preventing the deformation and cracking of the sealing ring, and extending the service life of the product or structure.
Environmental Adaptation Protection: It has excellent high and low temperature resistance, UV resistance, salt spray resistance and corrosion resistance, and can maintain stable performance in extreme environments, adapting to complex working conditions such as outdoor, high humidity, and high salt, without frequent maintenance and replacement.
Compared with the disadvantage of airtightness of traditional waterproof materials, the waterproof breathable membrane achieves a perfect balance between waterproof and breathable. It does not require additional ventilation structures, simplifies product design, and reduces later operation and maintenance costs. It is an indispensable functional material in modern industrial, construction and other fields.
2. Multi-field Applications of Waterproof Breathable Membrane: Covering Core Scenarios of Industry and Construction
As a multi-functional material, our waterproof breathable membrane is widely used in many core B-end fields such as industrial manufacturing, building enclosure, and electronic and electrical industries, relying on its flexible installation methods and stable performance, adapting to the personalized needs of different scenarios. The main application scenarios are detailed below:
Industrial Manufacturing Field
Focusing on the sealing protection of industrial equipment, it solves the problems of air pressure balance and moisture prevention during equipment operation, reduces equipment failure rate, and extends equipment service life. It is mainly used in:
Heavy Machinery: Electrical control cabinets and sensor housings of construction machinery such as excavators and loaders, blocking the intrusion of rainwater and dust, discharging internal moisture, and ensuring the stable operation of the electrical system.
Automobile Manufacturing: New energy vehicle battery packs, engine compartments, headlight housings and sensors, balancing internal and external air pressure, preventing condensation and corrosion, ensuring the safety and stability of batteries and electrical components, and adapting to the strict performance standards of the automotive industry.
General Equipment: Housing protection of compressors, water pumps, instruments, and meters, avoiding the failure of precision components caused by moisture and dust, and improving the reliability of equipment operation.
Electronic and Electrical Field
Aiming at the precision protection needs of electronic equipment, it provides a lightweight and high-protection waterproof and breathable solution, adapting to the development trend of miniaturization and sealing of product design. It is mainly used in:
Outdoor Electronics: Street lights, floodlights, surveillance cameras, and telecommunication tower equipment, resisting outdoor wind, rain, and alternating high and low temperatures, preventing lens fogging and circuit corrosion, and ensuring the long-term stable operation of equipment.
Consumer Electronics: Walkie-talkies, smart wearable devices, and outdoor detectors, achieving waterproof protection while discharging internal moisture of the equipment, improving user experience and product durability.
Sensors and Instruments: Environmental monitoring sensors and gas sensors, ensuring the detection accuracy of sensors, preventing the intrusion of moisture and corrosive gases, and adapting to complex detection environments.
Building Enclosure Field
As a key supporting material for the building external enclosure system, it is mainly used for waterproof and breathable protection of roofs and walls, improving the air tightness, water tightness, and durability of buildings, and reducing building operation and maintenance costs. It is mainly used in:
Metal Roofs/Concrete Roofs: Covered outside the insulation layer, it blocks rainwater penetration, discharges internal moisture of the building, protects the performance of the insulation layer, avoids roof condensation and mold, extends the service life of the roof, and is suitable for industrial plants, logistics and warehousing centers, large public buildings, etc.
External Walls and Curtain Walls: Used with insulation materials, it balances the internal and external air pressure of the wall, discharges internal moisture, prevents wall bulging and cracking, improves building energy-saving effect and living comfort, and is suitable for office buildings, villas, public venues, etc.
Special Buildings: Subways, tunnels, coastal commercial complexes, etc., undertake the functions of moisture-proof and vapor barrier, and salt spray erosion resistance, avoiding the corrosion of reinforced concrete structures, and ensuring the safety of building structures.
Other Special Fields
According to the customized performance of the product, it can also be applied to the packaging field (chemical and pesticide packaging, realizing gas release without liquid leakage), medical equipment (moisture-proof protection), etc., to meet the personalized protection needs of different industries.
3. Core Selling Points of the Factory: Direct Supply from Source, Double Guarantee of Quality and Cost-Effectiveness

As a source production factory, we abandon intermediate links, focus on the needs of B-end customers, and create highly competitive products and services. The core selling points are as follows:
Direct Supply from Source Factory, Controllable Cost
With its own production base and automated production lines, it independently controls the entire process from raw material procurement, production, and processing to finished product delivery, without price increases from intermediate agents. Bulk purchases can enjoy factory-direct supply prices, which greatly reduce customer procurement costs. At the same time, it supports small-batch customization to meet the different stage needs of customers, such as trial production and mass production, and flexibly adapts to procurement plans.
Strict Quality Control, Stable and Qualified Performance
A complete quality inspection system has been established, equipped with professional testing equipment. Strict inspections are carried out in each process, from raw material entry, production process, to finished product delivery, to ensure that all performance indicators of the product meet the standards. The products have passed authoritative certifications such as ISO and CE, complying with the national standard GB/T 27789 Building Waterproof Breathable Membrane and relevant industry specifications. The waterproof level can reach IP67/IP68, and core indicators such as water vapor transmission rate and tensile strength are far higher than the industry average. It has excellent weather resistance and corrosion resistance, and can be used stably for a long time.
Mature Production Capacity, Stable and Timely Supply
Equipped with multiple automated production lines, the daily output is considerable, which can meet the large-volume and regular procurement needs of B-end customers. The complete supply chain management system and sufficient raw material reserves can effectively avoid supply chain risks, ensure on-time delivery of orders, and not delay the customer's production progress. At the same time, it provides urgent services for bulk orders to flexibly respond to customers' emergency procurement needs.
Professional Technical Support, Perfect After-sales Service
Provide full-process technical support for B-end customers. Pre-sales, provide product selection consultation and sample testing services to help customers choose the most suitable products; in-sales, provide installation guidance and construction skills training; after-sales, establish an exclusive service team to quickly respond to customer feedback, solve various problems in the process of product use, and provide product quality assurance, allowing customers to purchase with confidence.
4. Core Product Parameters (Factory Standard Model)
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Product Name
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Material
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Waterproof Level
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Water Vapor Transmission Rate
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Temperature Resistance Range
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Tensile Strength
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Application Scenarios
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Industrial-grade Waterproof Breathable Membrane
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ePTFE/Composite Material
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IP67-IP68
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≥8000g/(㎡·24h)
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-40℃~120℃
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≥150N/50mm
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Industrial Equipment, Automobile, Electronics
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Building-grade Waterproof Breathable Membrane
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PP Spunbond/Composite Material
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IP64-IP67
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≥5000g/(㎡·24h)
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-30℃~80℃
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≥120N/50mm
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Roof, Wall, Building Enclosure
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Customized Waterproof Breathable Membrane
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Customized on Demand
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Customized on Demand
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Customized on Demand
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Customized on Demand
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Customized on Demand
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Special Scenarios, Personalized Needs
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5. Cooperation Consultation