eptfe membrane for water-repellent fabric systems
While traditional water-repellent (DWR) treatments on face fabrics can degrade over time, Huzhou Kaili's ePTFE (expanded Polytetrafluoroethylene) membranes provide the permanent, high-pressure barrier that defines a true water-repellent system. Our membranes are engineered to be the functional core of 2-layer and 3-layer textile composites, ensuring that even when the outer fabric becomes saturated, the wearer remains completely dry.
Operating from our 3,000m² facility in the Yangtze River Delta fluoromaterial cluster, we specialize in the coating, finishing, and customization of membranes that exceed international standards for extreme weather performance.
| Performance Metric | Test Method | Laboratory Grade Value |
| Waterproof Rating | ISO 811 | 15,000mm – 30,000mm H₂O |
| Breathability (Ret) | ISO 11092 | 3.0 – 6.0 (Extremely Breathable) |
| Moisture Vapor (MVTR) | ASTM E96 BW | 12,000 – 20,000 g/m²/24h |
| Wind Resistance | ISO 9237 | 0.0 mm/s (100% Windproof) |
| Thickness | Micrometer | 10μm – 35μm (Customizable) |
📩 Request a product sample now
Engineering the Multi-Layer Repellent System
A high-performance fabric system relies on the synergy between the outer treatment and the internal membrane. Our ePTFE films are optimized for:
- High Hydrostatic Pressure Resistance: Withstands water entry pressures of up to 30,000mm. This ensures an impenetrable barrier against wind-driven rain and pressurized moisture (such as kneeling on wet ground or wearing heavy backpack straps).
- Tuned Vapor-Drive Microporosity: Featuring over 9 billion pores per square inch, our membrane architecture maintains a high Vapor Pressure Gradient. This allows perspiration to exhaust instantly, preventing the internal "sauna effect" and keeping the wearer dry from the inside out.
- Superior Adhesive Compatibility: Specifically treated for high-energy surface tension to ensure a permanent mechanical bond with PUR (Polyurethane Reactive) adhesives. This results in Peel Strength (>5.0 N/5cm) that eliminates the risk of delamination during heavy use or industrial laundering.
- Oleophobic Protection (Optional): We offer specialized finishes that protect the ePTFE nodal structure from contamination by body oils, salts, and detergents, which can otherwise compromise the system's water-repellent and breathable performance.
Request a System Performance Trial
Are you looking to upgrade the waterproof rating or the peel strength of your current fabric system? Our engineering team in China is ready to provide custom samples and technical data for your internal validation.
Contact us today for factory-direct pricing and professional technical support.
📩 Request a product sample now
Our Factory
Hot Tags: eptfe membrane for water-repellent fabric systems, China eptfe membrane for water-repellent fabric systems manufacturers, suppliers, factory
