Ningbo Kaxite Sealing Materials Co., Ltd.
Ningbo Kaxite Sealing Materials Co., Ltd.
PTFE Porous Membrane

PTFE Porous Membrane

Kaxite Seals is a China-based PTFE porous membrane manufacturer producing hydrophobic, biaxially oriented ePTFE membrane from 100% virgin PTFE resin. The microporous structure delivers high breathability, high tensile strength and a high particle interception rate. Standard pore size: 2–5 μm; thickness: 8–40 μm; porosity: 80–97%; width: 1.5–1.9 m; air permeability: 20–45 L/m²/s at 127 Pa. The material is chemical resistant, food grade, ageing resistant and non-stick, and is produced in a dust-free workshop. It is widely used in incineration, garment, cement, medical and chemical filtration. Custom widths, OEM packaging and flexible MOQ are available for B2B buyers. Send your pore size, width, quantity and destination port for a bulk quotation.
PTFE Porous Membrane supplied by Kaxite Seals, China manufacturer
PTFE Porous Membrane · Hydrophobic ePTFE Filtration Membrane · Factory Direct

PTFE Porous Membrane Manufacturer — Hydrophobic ePTFE Filtration Membrane with Custom Width & Pore Size

Kaxite Seals produces PTFE porous membrane from 100% virgin biaxially oriented PTFE. The microporous structure delivers high breathability, high tensile strength and a high particle interception rate — while remaining chemically inert, food grade, ageing resistant and non-stick.

If you are sourcing hydrophobic filtration membrane for incineration, garment, cement, medical or chemical filtration, this grade gives you a stable, dust-free material with reliable air permeability and water pressure resistance. Custom widths, OEM private-label packaging and flexible MOQ are available for B2B buyers.

2–5 μmPore size
8–40 μmThickness
80–97%Porosity
1.5–1.9 mWidth
20–45L/m²/s @ 127 Pa
100% Virgin PTFEBiaxially oriented

Why B2B Buyers Source PTFE Porous Membrane from Kaxite

Factory-direct pricing

Order straight from our Ningbo production line — no trading company markup, no hidden layer between your purchase order and the price you pay per roll.

Custom width and pore size

Standard widths from 1.5 m to 1.9 m and pore sizes from 2 μm to 5 μm. Non-standard widths, thicknesses and pore sizes are produced to your specification.

Hydrophobic and breathable

The biaxially oriented microporous structure allows air and vapour to pass while blocking liquid water and particles — ideal for venting and filtration duties.

Consistent quality batch after batch

Width, pore size, thickness, porosity and air permeability are checked on every production run, so the second container matches the first sample you approved.

Export-ready OEM and private label

Neutral cartons, private-brand labels, custom pallet marking and full export documentation for distributors and filtration equipment manufacturers.

Specification & Properties of PTFE Porous Membrane

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Property Value
Width 1.5–1.9 m
Pore size 2–5 μm
Thickness 8–40 μm
Porosity 80–97%
Membrane filter media permeability 20–45 L/m²/s at 127 Pa
Material 100% virgin biaxially oriented PTFE
Colour White
Structure Microporous, biaxially oriented
Surface property Hydrophobic, non-stick
Chemical resistance Resistant to all common industrial chemicals
Food contact Food grade
Ageing resistance Yes
Water pressure resistance High
Particle interception High interception rate
Flame property Flame proof
Production environment Dust-free workshop

Custom widths, pore sizes, thicknesses and roll lengths are produced to your specification. Send the required parameters with your enquiry and we will confirm feasibility and unit price.

Where PTFE Porous Membrane Is Used

Incineration flue gas filtration Garment and textile breathable membrane Cement industry dust filtration Medical and pharmaceutical filtration Chemical industrial filtration Venting and pressure equalisation Water and air filtration Battery and electronics venting Food and beverage filtration Environmental protection equipment

How to Order — Quotation Process for B2B Buyers

01

Send your specification

Pore size, thickness, width, roll length, quantity and application. If you have a sample or drawing, attach it and we will match it.

02

Receive quotation and samples

We reply with unit pricing, lead time and shipping options. Evaluation samples are available so your engineering team can verify the membrane first.

03

Confirm order and packaging

Choose neutral export cartons or private-label packaging. We confirm pallet configuration and documentation before production starts.

04

Production, inspection and shipment

Batch inspection covers width, pore size, thickness, porosity and air permeability. Inspection reports can be issued with the shipping documents.

Frequently Asked Questions from Purchasing Teams

Can you produce PTFE porous membrane in custom widths and pore sizes?
Yes. Standard width is 1.5–1.9 m and standard pore size is 2–5 μm. Custom widths, pore sizes and thicknesses are produced to your specification. Send the required parameters, quantity and application, and we will confirm feasibility and unit price before production.
What is the minimum order quantity for PTFE porous membrane?
The MOQ is flexible. Small trial orders are accepted so you can validate filtration performance in real service, as well as full container loads for ongoing distribution or project programmes.
What is the lead time for bulk PTFE porous membrane orders?
Standard sizes ship quickly from stock. Custom widths, private-label packaging and large project volumes are confirmed at the time of quotation so you can plan your production schedule accurately. Typical delivery lead time is 7 to 30 days depending on specification and quantity.
Is PTFE porous membrane suitable for food and medical filtration?
Yes. The material is food grade and is produced in a dust-free workshop from 100% virgin PTFE. It is chemically inert, ageing resistant and non-stick, so there is no contamination of the filtered medium.
Do you offer OEM and private-label packaging for PTFE porous membrane?
Yes. We supply neutral export cartons or customer-branded labels, cartons and pallet marking. Distributors typically combine private-label packing with mixed-size containers.
How is quality consistency maintained between production batches?
Width, pore size, thickness, porosity and air permeability are checked on every production run. Batch inspection records can be supplied with the shipment on request.

Need pricing on PTFE porous membrane?

Send your pore size, thickness, width, roll length, quantity and destination port. Our sales engineers reply with a quotation, available samples and the packing options for your market.

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