PTFE Micropore Gas Membrane
Kaxite Seals presents PTFE Micropore Gas Membrane, an advanced sealing solution crafted from high-grade PTFE for optimal gas containment. This product excels in durability and chemical resistance, ensuring leak-proof performance in demanding industrial applications. Ideal for engineers and manufacturers, it streamlines operations and enhances safety, delivering peace of mind through reliable, long-lasting use. Elevate your projects with our innovative design and proven effectiveness—experience the Kaxite Seals difference today!
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Product Description
PTFE micropore gas and dust filtration membrane (also known as ePTFE membrane) is manufactured from 100% virgin PTFE dispersion resin through a precision process of extrusion, calendering, sintering, and biaxial stretching. This creates a three-dimensional microporous structure with billions of interconnected pores per square centimeter. The membrane is inherently hydrophobic and oleophobic, and offers an exceptional combination of high filtration efficiency, low pressure drop, broad chemical compatibility, and extreme temperature resistance from -150°C to +250°C.
The membrane can be supplied as a stand-alone film or laminated onto various base materials such as polyester, glass fiber, non-woven fabric, or needle felt. This makes it suitable for a wide range of filtration systems including baghouse filters, cartridge filters, dust collectors, and air purification equipment. Our PTFE membrane is engineered to meet the most demanding industrial and environmental standards.
Key Highlights at a Glance
- Material: 100% virgin PTFE, biaxially stretched into a microporous ePTFE structure
- Pore size: 0.05–5 μm with aperture ratio up to 85%
- Temperature: -150°C to +250°C continuous, short-term up to 300°C
- Filtration efficiency: 99.9%+ for particles down to 0.1 μm
- Surface: Hydrophobic (water contact angle > 150°) and oleophobic (oil repellency grade 6–8)
- Formats: Stand-alone film or laminated with PET, glass fiber, non-woven, or needle felt
Features
- 100% PTFE material – chemically inert to most acids, alkalis, and organic solvents
- Biaxially stretched microporous structure with pore size from 0.05 to 5 μm
- High porosity (up to 85%) for high flux and low air flow resistance
- Hydrophobic and oleophobic – repels water, oil, and other low surface tension liquids
- Wide working temperature range: -150°C to +250°C, with short-term resistance up to 300°C
- Excellent filtration efficiency, typically 99.9%+ for particles down to 0.1 μm
- Non-stick surface allows easy dust release and reduces cleaning cycles
- High tensile strength and dimensional stability
- Can be laminated with polyester, glass fiber, non-woven, or needle felt for enhanced mechanical support
- Long service life even in aggressive chemical and high-temperature environments
Applications
The PTFE micropore membrane is widely used in air purification and dust filtration across many industries. Typical applications include:
- Industrial dust collectors and baghouse filter bags
- Air conditioning and HVAC systems
- Electrical equipment and electronic manufacturing
- Pharmaceutical processing and clean rooms
- Automobile painting and coating lines
- Gas turbine intake filtration
- Cement, steel, and metallurgical plants
- Waste incineration and flue gas treatment
- Medical ventilation and respiratory filters
- Food and beverage processing (with appropriate certifications)
It is also suitable for liquid filtration, membrane distillation, and venting applications where chemical resistance and high temperature stability are required. Related products include PTFE micro porous filtration tube and soft PTFE sealing sheet.
Properties
| Item | Unit | Result |
|---|---|---|
| Pore Size | μm | 0.05–5 |
| Aperture Ratio | % | ≥ 85 |
| Filtration Rate | H | 11–14 |
| Temperature | °C | -150 to +250 |
| Air Permeability | L/dm²·min | 10–80 (depending on pore size) |
| Thickness | μm | 20–200 |
| Width | mm | 100–2000 (customizable) |
| Chemical Resistance | — | Excellent against most acids, alkalis, solvents |
| Hydrophobicity | — | Water contact angle > 150° |
| Oleophobicity | — | Oil repellency grade 6–8 |
Standard Specifications
| Model | Pore Size (μm) | Thickness (μm) | Width (mm) | Base Material |
|---|---|---|---|---|
| PTFE-M05 | 0.05–0.1 | 20–50 | 100–2000 | None / PET / Glass fiber |
| PTFE-M10 | 0.1–0.5 | 30–80 | 100–2000 | None / PET / Non-woven |
| PTFE-M30 | 0.5–3 | 50–150 | 100–2000 | None / PET / Needle felt |
| PTFE-M50 | 3–5 | 80–200 | 100–2000 | None / PET / Glass fiber |
Customization Options
We offer full OEM and ODM services for PTFE micropore membranes. Customization options include:
- Pore size adjustment from 0.05 μm to 5 μm
- Membrane thickness from 20 μm to 200 μm
- Width up to 2000 mm, with slitting to precise dimensions
- Lamination with polyester (PET), glass fiber, polypropylene, non-woven, or needle felt
- Surface treatment for enhanced oleophobicity or hydrophilicity
- Color matching and custom packaging
- Die-cutting into discs, sheets, or specific shapes
- Assembly into filter cartridges or bags
Quality Assurance
Our PTFE micropore membranes are manufactured under a strict ISO 9001 quality management system and carry CE certification. Every batch undergoes comprehensive testing in our in-house laboratory, including:
- Pore size distribution and bubble point test
- Air permeability and filtration efficiency test
- Tensile strength and elongation test
- Creep relaxation and hot compression test
- Sealability and leakage test
- Chemical resistance and temperature resistance verification
Full test reports accompany every shipment. Independent third-party lab reports can be provided upon request for your quality audit. Our products meet API 607, NACE MR0175, and BS EN standards.
Why Choose Us
🏭 In-house Manufacturing
6,000 m² facility with automated cutting, die-forming, and braiding lines. Flexible capacity for standard and custom orders.
✅ ISO 9001 & CE Certified
Strict quality control from raw material to finished product. Full test reports for compression, creep relaxation, and leakage accompany every shipment.
🌍 Global Supply Network
Trusted exporter to Europe, North America, Australia, and Southeast Asia. Meet API 607, NACE MR0175, and BS EN standards.
🔧 OEM & ODM Services
Over 15 years of custom manufacturing experience. Tailored solutions for unique specifications, materials, and sizes.
🧪 In-house Testing Lab
Creep relaxation, hot compression, sealability, and tensile tests on every batch. Independent lab reports provided for your quality audit.
🚚 Fast Sample & Delivery
Custom gasket samples in 7–10 days. Bulk orders shipped within 30–45 days with real-time tracking. Flexible trade terms: EXW, FOB, CIF.
Packaging & Shipping
PTFE micropore membranes are supplied in rolls or sheets, protected by clean room compatible packaging. Standard packaging includes:
- Inner core: plastic or cardboard core
- Outer wrap: PE bag and aluminum foil bag for moisture protection
- Carton or wooden case for export
- Custom labeling and private branding available
Shipping methods: express (DHL, FedEx, UPS), air freight, sea freight. Trade terms: EXW, FOB, CIF, DDP. Real-time tracking provided for all orders.
Frequently Asked Questions
What is the PTFE micropore membrane used for?
It is used for gas and dust filtration, including air purification, industrial dust collection and filtration in air conditioning, electrical equipment, pharmacy, automobile, gas turbine, concrete, steel and waste incineration.
What is the working temperature of the PTFE micropore membrane?
It is both high and low temperature resistant and can work in a range from -150 to +250 degrees Celsius. Short-term exposure up to 300°C is possible.
What pore size is available?
The pore size is 0.05–5 μm, with an aperture ratio of about 85%. We can customize pore size within this range.
What is the difference between PTFE and ePTFE membrane?
ePTFE (expanded PTFE) is a type of PTFE that has been biaxially stretched to create a microporous structure. Our PTFE micropore membrane is an ePTFE membrane. It offers higher porosity, better filtration efficiency, and lower pressure drop compared to non-expanded PTFE.
Can it be used in food and pharmaceutical applications?
Yes, our PTFE membrane is chemically inert and can be used in food and pharmaceutical processing. We can provide food-grade and pharmaceutical-grade certificates upon request.
Do you provide OEM/ODM services?
Yes, we have over 15 years of custom manufacturing experience and can tailor solutions for unique specifications, materials, and sizes.
What are your delivery terms and lead times?
Custom samples are ready in 7–10 days. Bulk orders ship within 30–45 days with real-time tracking. We offer EXW, FOB, and CIF terms.
What is the minimum order quantity (MOQ)?
For standard specifications, MOQ is 100 square meters. For custom orders, MOQ depends on the specific requirements. Please contact us for details.
Need a Custom PTFE Micropore Membrane Solution?
Send us your pore size, thickness, width, base material, and application details. Our engineering team will recommend the right specification and provide a fast quotation.
Hot Tags: PTFE Micropore Membrane Manufacturer, Gas Filtration PTFE Membrane Supplier, Microporous PTFE Membrane Bulk
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