China EPTFE Yarn Manufacturers, Suppliers and Factory - Wholesale EPTFE Yarn

Your Leading EPTFE Yarn Supplier

Huzhou Kaili New Material Technology Co., Ltd. is strategically located in Huzhou, Zhejiang Province, China, a key hub in the Yangtze River Delta fluoromaterial industry cluster. We focus on the coating, finishing, and customization of high-performance fabrics using fluoropolymers and silicones. Our products include PTFE coated fiberglass fabric, PTFE open mesh Belts, PTFE adhesive tapes, PTFE rusing belts & seamless belts, silicone coated fiberglass fabric, etc. EPTFE yarn, or expanded polytetrafluoroethylene yarn, is a highly durable, biocompatible, and versatile material derived from PTFE (Teflon) that's been expanded to create a porous structure, used in medical devices, textiles, and other applications requiring strength, flexibility, and controlled porosity.

EPTFE Filament
EPTFE filament is a high-performance material with a unique microporous structure, known for its high flexibility, chemical resistance and high temperature resistance. This fiber is not only waterproof and breathable, but also maintains
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EPTFE Sewing Thread
EPTFE sewing thread is a high-performance material with high temperature resistance, chemical corrosion resistance and low friction coefficient. It has good biocompatibility and is suitable for medical and harsh environments. Its smooth
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EPTFE Staple Fiber
EPTFE staple fiber is an expanded polytetrafluoroethylene fiber with high strength, low shrinkage, abrasion resistance and UV resistance. It performs well in extreme environments and can be used to make filter materials, waterproof and
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Why Choose Us?

Rich Experience

Our factory specializes in the production of expanded polytetrafluoroethylene (e-PTFE) and its composite materials, with more than 10 years of industry experience, committed to providing high-performance solutions for various industries.

Quality Guaranteed

We carefully select high-quality raw materials and strictly control every link of production. With ISO9001:2015, IQNET, CE and SGS certifications, we ensure excellent product quality and reliability.

Advanced Production Technology

Kaili is equipped with cutting-edge European machinery, vertically integrated from weaving to coating, including high-speed warping systems, wide rapier looms, automatic dip coating lines.

Customized Solutions

The R&D programs conducted by our engineering team focus on customizing fabric tensile strength (up to 800 N/cm²) and surface treatments to meet specific industry needs.

Types of EPTFE Yarn

EPTFE Staple Fiber

EPTFE staple fiber is an expanded polytetrafluoroethylene fiber with high strength, low shrinkage, abrasion resistance and UV resistance. It performs well in extreme environments and can be used to make filter materials, waterproof and breathable fabrics, medical implants and electronic insulation materials. The fiber also has good flexibility and biocompatibility and is widely used in industrial, medical and electronic fields.

EPTFE Sewing Thread

EPTFE sewing thread is a high-performance material with high temperature resistance, chemical corrosion resistance and low friction coefficient. It has good biocompatibility and is suitable for medical and harsh environments. Its smooth surface reduces friction, is waterproof and breathable, and is UV-resistant and aging-resistant. It is widely used in industrial filtration, outdoor products, medical and other fields.

EPTFE Filament

EPTFE filament is a high-performance material with a unique microporous structure, known for its high flexibility, chemical resistance and high temperature resistance. This fiber is not only waterproof and breathable, but also maintains stable physical and chemical properties in extreme environments. It is widely used in medical, filtration, electrical and electronic, and sealing fields.

Parameter of EPTFE Yarn

Parameter	Typical Value Range
Yarn Count	50D - 1000D or more
Tensile Strength	Several cN/D - tens of cN/D (e.g., 20 - 30 cN/D for high - quality yarn)
Elongation at Break	10% - 40%
Porosity	70% - 90%
Chemical Composition	High - purity PTFE
Melting Point	Around 327°C
Coefficient of Friction	0.05 - 0.2
Electrical Properties	Dielectric strength: several hundred kV/mm; Ielectric constant: 2.0 - 2.2

Characteristic of EPTFE Yarn

High temperature and chemical corrosion resistance

EPTFE sewing thread can withstand high temperatures of more than 260°C, does not react with most chemicals, and is suitable for extreme environments.

Waterproof and breathable

Its unique microporous structure can block the intrusion of liquid water while allowing water vapor to pass through, keeping the material dry, and is suitable for the fields of medical and outdoor products..

igh flexibility and durability

EPTFE material has good flexibility, can be bent and folded at will, and has high mechanical strength, wear resistance, anti-aging properties, long service life, and reduced use costs.

Excellent biocompatibility

EPTFE sewing thread is nontoxic, non-irritating, and compatible with biological tissues. It is suitable for medical implants, artificial blood vessels, and other fields to promote tissue healing.

Customization options

Material

EPTFE

Color

Multiple options

Size

Customizable

Tensile strength

Up to 800 N/cm²; Customizable

Surface treatment

Customizable

Application of EPTFE Yarn

Textile Industry: It is used to make high - performance fabrics with waterproof, breathable, and stain - resistant properties. These fabrics are widely used in outdoor sports clothing, military uniforms, and protective clothing.

Filtration Industry: EPTFE - coated filter materials made from ePTFE yarn are used in air - and liquid - filtration applications. They can effectively capture fine particles and pollutants, providing high - efficiency filtration in industrial - exhaust systems, air - conditioning systems, and water - treatment plants.

Sealing Industry: EPTFE yarn is made into gaskets, seals, and packing materials. Due to its chemical resistance and low friction coefficient, it can provide reliable sealing in various mechanical equipment and pipelines, especially in applications involving high - temperature and corrosive media.

Electrical Industry: Its excellent electrical - insulation properties make it suitable for use in wire and cable insulation, as well as in insulating components for electronic devices.

Medical Industry: EPTFE yarn is used in some medical - device applications, such as in vascular grafts and wound - dressing materials. Its biocompatibility and non - stick properties are beneficial for promoting tissue healing and reducing the risk of infection.

Packaging and Delivery

Packaging	Wooden Cases, Cartons, Palletization.
Shipping	By logistics; by shipping; by air.
Payment	T/T, Paypal.

FAQ

Q: What are the main components of EPTFE yarn?

A: The main component of EPTFE yarn is polytetrafluoroethylene (PTFE). Through a special expansion and stretching process, PTFE forms a porous structure, resulting in ePTFE yarn with unique properties.

Q: What are the advantages of EPTFE yarn in terms of chemical resistance?

A: EPTFE yarn has excellent chemical resistance. It is hardly corroded or degraded by most chemicals, including strong acids, strong alkalis, and organic solvents. This makes it suitable for use in harsh chemical environments.

Q: In what temperature range can EPTFE yarn maintain good stability?

A: EPTFE yarn can maintain good stability in a wide temperature range. Its melting point is around 327°C, and it can withstand high temperatures without significant deformation or property changes. At low temperatures, it also does not become brittle and maintains a certain degree of flexibility.

Q: How does the porous structure of EPTFE yarn affect its performance?

A: The porous structure of EPTFE yarn endows it with good breathability and water - vapor permeability. The pores are small enough to prevent liquid water from passing through, ensuring waterproofness, while allowing water - vapor molecules to pass through via diffusion, achieving breathability.

Q: What is the difference in mechanical properties between EPTFE yarn and ordinary yarn?

A: Compared with ordinary yarn, EPTFE yarn has higher tensile strength and lower elongation at break. It can withstand greater pulling force before breaking and has better dimensional stability. In addition, EPTFE yarn has a lower coefficient of friction, which is beneficial for reducing friction in textile processing and use.

Q: How to maintain and clean EPTFE yarn products?

A: EPTFE yarn products are relatively easy to maintain and clean. Due to their non - stick and hydrophobic properties, stains are not easy to adhere to the surface. General cleaning can be done with mild detergents and water. Avoid using strong - acid or strong - alkali cleaners to prevent damage to the properties of EPTFE yarn. After cleaning, dry naturally or use low - temperature drying.

Q: What are the application scenarios of EPTFE yarn in the textile industry?

A: In the textile industry, EPTFE yarn is often used to make high - performance functional fabrics. For example, it is used in outdoor clothing to provide waterproof, breathable, and windproof properties. It is also used in some special - purpose work clothes to protect workers from harsh environmental conditions.

We're well-known as one of the leading EPTFE yarn manufacturers and suppliers in China. If you're going to wholesale high quality EPTFE yarn, welcome to get more information from our factory.

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