Graphite-Filled PTFE Tube
Model:KXT GU980
Graphite Filled PTFE Tube has exceptional chemical resistance to corrosive environments and it is compatible with most hydraulic fluids. PTFE. Graphite Filled exhibits good initial wear and rubbing/sliding characteristics in dry and water applications. Excellent performance when used for hydraulic or pneumatic compression type rod and piston seals, bearing bands and rotary applications. Graphite is commonly blended with carbon and PTFE (Teflon)
Graphite Filled PTFE Tube – KXT GU980
Kaxite Sealing, a leading China PTFE product manufacturer, presents the KXT GU980 Graphite Filled PTFE Tube – a high-performance engineering plastic tube engineered for demanding applications where exceptional chemical resistance, low friction, and enhanced wear properties are required. Graphite filled PTFE combines the outstanding chemical inertness of PTFE (Teflon®) with the improved mechanical strength and self-lubricating characteristics of graphite filler, making it the preferred choice for hydraulic and pneumatic seals, bearings, bushings, and wear components.
Why KXT GU980? The addition of graphite powder to PTFE significantly improves wear resistance, reduces friction, and enhances thermal conductivity while maintaining PTFE's broad chemical compatibility across pH 0–14 (except molten alkali metals and strong oxidizers). This material exhibits excellent performance in dry and water-lubricated applications, making it ideal for compression type rod and piston seals, bearing bands, and rotary applications where conventional PTFE would experience excessive wear.
As a trusted PTFE product supplier in China, Kaxite offers the KXT GU980 in a wide range of standard diameters and lengths, with custom dimensions available on request. We support various filler content levels and can manufacture tubes in both molded and extruded forms to meet your specific requirements. Request a free sample or get a wholesale quote today.
Temp. Range-200°C to +260°C
Specific Gravity2.2–2.35 g/cm³
Hardness (Shore D)55–60
Tensile Strength9–12 MPa
Elongation≥ 120%
Filler ContentGraphite powder + PTFE
Why KXT GU980 Graphite Filled PTFE Tube?
- ✅ Exceptional Chemical Resistance – Compatible with virtually all aggressive chemicals (pH 0–14)
- ✅ Enhanced Wear Resistance – Graphite filler significantly improves abrasion resistance in dry and wet applications
- ✅ Low Coefficient of Friction – Excellent self-lubricating properties reduce friction and wear
- ✅ Wide Temperature Range – Maintains properties from -200°C to +260°C
- ✅ Higher Surface Hardness – Improved flexural modulus compared to unfilled PTFE
- ✅ Custom Dimensions Available – Any diameter, length, or wall thickness to your specifications
Available Configurations – Molded & Extruded PTFE Tubes
Kaxite offers graphite filled PTFE tubes in multiple configurations to suit different application requirements. All tubes are manufactured from high-quality PTFE resin and premium graphite filler with full material traceability.
Molded Graphite Filled PTFE Tubes
Manufactured through compression molding of PTFE resin with uniformly dispersed graphite filler. This process produces tubes with excellent dimensional stability and consistent filler distribution. Ideal for large-diameter and thick-wall applications requiring high structural integrity.
Extruded Graphite Filled PTFE Tubes
Produced by ram extrusion of pre-compounded PTFE/graphite material, offering cost-effective production for long lengths and consistent cross-sections. Suitable for applications where continuous lengths are required, with excellent surface finish and dimensional accuracy.
Custom Filler Content & Dimensions
Beyond standard graphite-filled PTFE, we offer custom filler content levels (5%–25% graphite) and can combine graphite with other fillers such as carbon, glass fiber, or bronze powder for specialized applications. Any diameter, wall thickness, and length available.
* All configurations can be supplied with custom filler content, dimensions, and tolerances. Contact us for specific application recommendations.
ISO 9001:2015 FDA 21 CFR 177.1550 REACH & RoHS Compliant UL 94 V-0 (Flame Retardant) Custom Filler Content
Key Advantages of KXT GU980 Graphite Filled PTFE Tube
Superior Wear Resistance – Graphite filler significantly improves abrasion resistance compared to unfilled PTFE, extending component life in dynamic sealing and bearing applications.
Low Friction Coefficient – Self-lubricating properties reduce friction and wear in dry, water-lubricated, and oil-lubricated environments, improving efficiency and reducing maintenance.
Universal Chemical Resistance – PTFE matrix provides excellent resistance to virtually all chemicals (pH 0–14), including acids, alkalis, solvents, and hydrocarbons.
Wide Temperature Range – Stable performance from -200°C to +260°C, suitable for cryogenic and high-temperature applications.
Enhanced Mechanical Strength – Higher flexural modulus and surface hardness than unfilled PTFE, providing better resistance to deformation under load.
Non-Contaminating & FDA Compliant – PTFE base material meets FDA 21 CFR 177.1550 requirements, making it suitable for food and pharmaceutical processing applications.
Graphite Filled PTFE – Technical Data & Material Properties
The addition of graphite powder to PTFE enhances mechanical and tribological properties while maintaining PTFE's exceptional chemical resistance. Kaxite uses high-purity PTFE resin and premium graphite filler to ensure consistent performance. The table below lists typical values for our standard KXT GU980 compound.
| Property | Typical Value | Test Method |
|---|---|---|
| Color | Dark grey to black | — |
| Specific Gravity | 2.2–2.35 g/cm³ | ASTM D792 |
| Hardness (Shore D) | 55–60 | ASTM D2240 |
| Tensile Strength (MPa) | 9–12 | ASTM D638 |
| Elongation at Break (%) | ≥ 120 | ASTM D638 |
| Flexural Modulus (MPa) | 800–1,200 | ASTM D790 |
| Temperature Range (°C) | -200 to +260 | — |
| Filler Content | Graphite powder (customizable) | — |
| Flame Retardancy | UL 94 V-0 | UL 94 |
* Custom filler content levels (5%–25% graphite), hybrid fillers (graphite + carbon, graphite + glass), and FDA-compliant grades available upon request. Contact our technical team for material selection guidance.
Graphite Filled PTFE vs Unfilled PTFE – Quick Comparison
| Property | Graphite Filled PTFE | Unfilled PTFE |
|---|---|---|
| Wear Resistance | Excellent | Poor |
| Coefficient of Friction | Low | Very Low |
| Surface Hardness | Higher | Lower |
| Flexural Modulus | Higher | Lower |
| Creep Resistance (Cold Flow) | Improved | Poor |
| Chemical Resistance | Excellent | Excellent |
| Temperature Range | -200°C to +260°C | -200°C to +260°C |
| Cost | Moderate | Low |
* Graphite filled PTFE is the superior choice for dynamic applications requiring wear resistance and dimensional stability, while unfilled PTFE is preferred for static applications where chemical resistance alone is the primary requirement.
Typical Applications & Industries
Compression Rods & Piston Seals Hydraulic and pneumatic compression type rod seals, piston seals, and gland packings requiring low friction and wear resistance.
Bearing Bands & Bushings Self-lubricating bearings, bearing bands, and bushings for rotating and sliding applications in chemical processing and material handling equipment.
Wear Strips & Guide Rails Wear strips, guide rails, and sliding components requiring low friction and high wear resistance in dry or water-lubricated environments.
Rotary Seals & Mechanical Seals Rotary shaft seals, mechanical seal components, and face seals in pumps, compressors, and mixers handling aggressive chemicals.
Chemical Processing Tubing, liners, and components for reactors, heat exchangers, and piping systems handling corrosive media.
Pharmaceutical & Food Processing FDA-compliant tubing and components for sanitary applications where non-contamination and chemical resistance are critical.
Why Choose Kaxite for Graphite Filled PTFE Tubes?
PTFE Processing Expertise – With decades of experience in PTFE compounding and fabrication, Kaxite ensures consistent filler distribution, accurate dimensions, and defect-free surfaces.
ISO 9001:2015 Certified – Our manufacturing processes are fully certified, with strict quality controls from raw material to finished product.
Custom Engineering Capability – We manufacture PTFE tubes to any diameter, wall thickness, length, and filler content – standard or custom.
Competitive Factory-Direct Pricing – As a China PTFE product manufacturer, we supply directly to end-users and distributors, offering significant cost advantages.
Rapid Quote & Technical Support – Our engineering team provides fast turnarounds on custom designs, material recommendations, and installation guidance – with a response time of under 2 business hours.
Global Supply Chain – We ship to over 40 countries, with flexible packaging and shipping options to meet your project deadlines.
Proven Reliability: Kaxite graphite filled PTFE tubes are specified by leading engineering and manufacturing companies worldwide for their exceptional performance in wear-critical and chemically aggressive environments.
Quality Assurance & Regulatory Compliance
Kaxite Sealing is an ISO 9001:2015 certified manufacturer. Our graphite filled PTFE tubes are produced under strict process controls – from PTFE resin selection, filler compounding, and molding/extrusion to final machining and inspection. Each tube is inspected for dimensional accuracy, surface finish, and visual quality. We provide material test certificates (MTCs) and can supply FDA compliance documentation upon request, ensuring full traceability from raw material to finished product.
- ISO 9001:2015
- FDA 21 CFR 177.1550
- REACH & RoHS Compliant
- UL 94 V-0 (Flame Retardant)
- 100% Dimensional Inspection
- Full Material Traceability
Quality you can depend on – our PTFE tubes are trusted by maintenance engineers and plant managers in critical service applications worldwide.
Custom Manufacturing & OEM Services – Free Sample Available
As a professional PTFE product manufacturer in China, we offer complete customisation to meet your exact specifications. Request a free sample or get a bulk quote today:
- Custom diameters: 10 mm to 500 mm (or larger)
- Custom wall thicknesses and lengths
- Filler content: 5%–25% graphite (customizable)
- Hybrid fillers: graphite + carbon, graphite + glass, graphite + bronze
- FDA-compliant PTFE grades on request
- Just-in-time delivery and inventory management
Get a free sample or request a tailored bulk quote – our team responds within 24 hours with competitive factory pricing and lead‑time estimates.
Frequently Asked Questions About Graphite Filled PTFE Tubes
- Q: What is graphite filled PTFE and why is it used?
- A: Graphite filled PTFE is a composite material where graphite powder is uniformly dispersed within a PTFE (Teflon®) matrix. It is used to improve wear resistance, reduce friction, enhance thermal conductivity, and increase surface hardness while maintaining PTFE's exceptional chemical resistance. It is ideal for dynamic applications such as bearings, seals, and sliding components.
- Q: What temperature range can graphite filled PTFE tubes withstand?
- A: Graphite filled PTFE tubes maintain their properties across a wide temperature range from -200°C to +260°C, making them suitable for both cryogenic and high-temperature applications.
- Q: How does graphite filled PTFE compare to unfilled PTFE?
- A: Graphite filled PTFE offers significantly improved wear resistance, higher surface hardness, better creep resistance, and a slightly higher coefficient of friction compared to unfilled PTFE. It is the preferred choice for dynamic applications where wear and dimensional stability are critical.
- Q: Is graphite filled PTFE FDA compliant?
- A: Yes, the PTFE base material meets FDA 21 CFR 177.1550 requirements. FDA-compliant graphite filled PTFE grades are available upon request for food and pharmaceutical processing applications.
- Q: What diameters and lengths can you manufacture?
- A: We can manufacture graphite filled PTFE tubes to any diameter from 10 mm to 500 mm (or larger) and any length. Wall thicknesses can be customized to your requirements. Contact us with your specification for a custom quote.
Partner with Kaxite Sealing – your trusted graphite filled PTFE tube manufacturer and supplier in China. With decades of PTFE processing expertise, advanced fabrication capabilities, and a steadfast commitment to quality, we deliver engineering plastic solutions that perform reliably in the most demanding chemical, hydraulic, and industrial applications. Request a free sample or get a tailored bulk quote today – our engineers respond within 24 hours.
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No. 432 Zhenhai Middle Road, Luotuo Street, Zhenhai District, Ningbo City, Zhejiang China
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