eptfe membrane in apparel fabric construction
In high-performance apparel, the membrane is only as good as its bond. Huzhou Kaili's ePTFE membranes are specifically engineered for industrial-scale lamination, providing the high surface energy and thermal stability required for 2L, 2.5L, and 3L fabric systems.
Produced at our 3,000m² facility in the Yangtze River Delta fluoromaterial cluster, our membranes solve the most common B2B challenges: delamination, "bubbling" during heat-press, and inconsistent breathability across wide-format rolls.
| Performance Metric | Test Method | B2B Specification Range |
| Waterproofness | ISO 811 (Pre-wash) | 15,000mm – 30,000mm H₂O |
| Waterproofness | ISO 811 (After 20 Washes) | > 80% Retention of Initial Value |
| Breathability (Ret) | ISO 11092 (Skin Model) | 3.0 – 6.0 (Extremely Breathable) |
| MVTR | ASTM E96 BW | 10,000 – 20,000 g/m²/24h |
| Thickness Tolerance | Micrometer | ± 2μm (Industry-leading consistency) |
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Critical Technical Solving Points for B2B Buyers
- Optimized Surface Energy for PUR Bonding: Our membranes undergo specialized surface treatment to ensure a permanent mechanical lock with Polyurethane Reactive (PUR) and hot-melt adhesives. This results in Peel Strength (>5.0 N/5cm) that exceeds industry standards for heavy-duty workwear.
- Thermal Dimensional Stability: Engineered to resist shrinkage at lamination temperatures up to 180°C. This prevents fabric curling and ensures a flat, smooth aesthetic in the finished textile, reducing factory "second-grade" waste.
- Tuned Air Permeability (cfm): We offer "Active Breathability" options where the pore structure is adjusted to provide specific air-exchange rates (0.05 to 5.0 cfm), essential for tactical and high-exertion athletic gear.
- Oleophobic Protection (Grade 6-8): Optional treatment that prevents the infiltration of body oils, salt, and detergents. This maintains the MVTR (Moisture Vapor Transmission Rate) throughout the garment's lifecycle, preventing the "wet-out" effect after multiple washes.
- Wide-Format Efficiency: Available in widths up to 2600mm, allowing for higher nesting efficiency and reduced fabric waste during the garment cutting process.
Construction Applications
Our ePTFE membrane is the "performance engine" for:
- Hardshell Construction (3L): Maximum abrasion resistance for mountaineering and tactical jackets.
- Softshell Systems (2L/3L): Optimized for stretch-laminate compatibility with Spandex/Lycra blends.
- Ultralight Shells (2.5L): Compatible with carbon-print or dry-touch protective coatings for packable rainwear.
- Industrial Safety Wear: Laminated with FR (Flame Retardant) aramids for heat-insulating and chemical-resistant uniforms.
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Our Factory
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