ePTFE membrane sheet
At Huzhou Kaili New Material Technology Co., Ltd., we specialize in the production and customization of ePTFE membrane sheets, offering superior performance in waterproofing, breathability, and chemical resistance. Located in Huzhou, Zhejiang Province, our 3,000 m² facility is part of the Yangtze River Delta fluoromaterial industry cluster, only about 1.5 hours from Shanghai by high-speed rail - ensuring efficient access to global markets.
As a subsidiary of Kaili Advanced Materials Group, we focus on coating, lamination, and finishing of high-performance fabrics using fluoropolymers and silicones. Our ePTFE membrane sheets are widely used in high-end garment systems, industrial filtration, venting, and medical barrier applications.
Technical Specifications (Typical Values)
| Parameter | Value / Range | Remarks |
|---|---|---|
| Thickness | 5 – 100 μm | Customizable per application |
| Weight | 10 – 150 g/m² | Depends on structure |
| Average Pore Size | 0.1 – 1.0 μm | Controlled for airflow & waterproof balance |
| Air Permeability | 10 – 25 L/m²·s | Adjustable |
| Water Resistance (Hydrostatic Head) | ≥ 10,000 mm H₂O | Up to 25,000 mm achievable |
| MVTR (Breathability) | 5,000 – 25,000 g/m²·24h | For comfort applications |
| Temperature Range | -200°C ~ +260°C | Stable under thermal stress |
| Surface Finishes | Fluoropolymer or silicone coatings | Optional treatments available |
Ordering Information
- Available Forms: Rolls, sheets, or pre-laminated composites
- MOQ: 500 meters per spec (flexible for sample runs)
- Sample Lead Time: 3–7 days
- Mass Production Lead Time: 2–4 weeks depending on customization
- Packaging: Export-safe rolls or flat sheets, moisture-protected
- Certifications: ISO9001:2015, SGS, CE (upon request)
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FAQs
Q1: What is the main difference between ePTFE membrane and normal PTFE film?
A1: ePTFE has a microporous structure that allows air and vapor transmission while blocking liquid water - making it breathable and waterproof simultaneously.
Q2: Can you supply laminated versions of the membrane sheet?
A2: Yes. We provide custom lamination with textiles, nonwovens, or foils for specific applications like apparel, filtration, or packaging.
Q3: Is the ePTFE membrane suitable for high-temperature industrial environments?
A3: Absolutely. It can continuously operate up to +260°C and withstand harsh chemical or thermal conditions.
Q4: Can I request a customized pore size or air permeability value?
A4: Yes. Our R&D team can precisely adjust expansion and sintering parameters to achieve target breathability or filtration levels.
Q5: What is your export capacity and typical delivery time?
A5: We export globally with standard lead times of 2–5 weeks depending on order size, supported by professional export logistics near Shanghai.
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