ePTFE composite membrane
I am Huzhou Kaili New Material Technology Co., Ltd., a specialized manufacturer within Kaili Advanced Materials Group. Our factory (3,000 m²) is based in Huzhou, Zhejiang Province - part of the Yangtze River Delta fluoromaterial cluster and only about 1.5 hours by high-speed rail from Shanghai. We focus on coating, finishing and customization of high-performance fabrics using fluoropolymers and silicones.
Our ePTFE composite membrane is a high-performance multilayer material that combines an expanded PTFE (ePTFE) microporous film with textile substrates or nonwovens. The composite delivers permanent waterproofing, high breathability, chemical and thermal stability, and robust mechanical strength. It is engineered for demanding applications in apparel, protective clothing, filtration, medical devices and industrial composites.
Technical Specifications (Typical / Customizable)
Base Membrane Thickness: 5 – 80 μm (custom options available)
Composite Weight Range: 30 – 300 g/m² (depending on substrate and lamination)
Pore Size Range: 0.1 – 1.0 μm (designable per application)
Hydrostatic Head (Waterproof): ≥ 10,000 mm H₂O (up to 25,000 mm achievable)
MVTR (Breathability): 5,000 – 25,000 g/m²·24h (depending on structure)
Operating Temperature: -200°C to +260°C (material dependent)
Lamination Methods: Hot-melt, adhesive, flame/thermal bonding as appropriate
Surface Treatments: Fluoropolymer durable water repellent (DWR), silicone finishes, anti-microbial, anti-oil, flame retardant (on request)
Factory & Service Advantages
Strategic Location & Logistics: 3,000 m² facility in Huzhou (Yangtze River Delta), ~1.5 hours by HSR from Shanghai - fast international connectivity.
Parent Group Strength: Backed by Kaili Advanced Materials Group, with focused expertise in fluoropolymers and high-performance finishes.
Full Customization (OEM / ODM): We design and produce composite membranes to exact buyer specifications - pore size, thickness, substrate, lamination method and finishing.
Production Capability: Precision lamination lines, controlled environment finishing, and strict quality inspection for consistent batch-to-batch performance.
Technical Support & R&D: Experienced technical team for material selection, performance tuning and prototyping.
Export Experience & Commercial Service: More than a decade of export operations - flexible MOQs, sample support, competitive pricing, and reliable lead times.
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Our Factory
FAQs
Q1: Can you laminate my supplied fabric to your ePTFE membrane?
A1: Yes - we accept customer-supplied substrates and can apply precise lamination (hot-melt/adhesive/flame) to meet project needs.
Q2: How durable is the composite after industrial washing?
A2: ePTFE's barrier is structural; with appropriate lamination and finish, composites retain waterproof and breathable performance after repeated industrial laundering. We recommend specifying finishes and run wash tests for final validation.
Q3: Can you tailor pore size and breathability (MVTR) for high-performance sportswear?
A3: Absolutely. Our R&D team optimizes pore size, membrane thickness and laminate structure to hit target MVTR and hydrostatic values for activewear use-cases.
Q4: What chemical resistance can I expect?
A4: ePTFE is chemically inert and resists many acids, alkalis and organic solvents. For specific chemical exposures, we will provide material compatibility guidance and test data.
Q5: Do you provide OEM/ODM support and technical documentation?
A5: Yes. We provide full OEM/ODM development, prototypes, technical datasheets, test reports, and export documentation to support buyer qualification and procurement.
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