

Carbon Fiber Packing
Carbon fiber packing is produced by braiding high-strength carbon fiber yarns and impregnating them with corrosion-resistant lubricants. It provides excellent self-lubrication, superior thermal conductivity, and outstanding chemical stability. With its smooth, dense surface and low friction coefficient, it maintains reliable sealing performance even under high temperature, high pressure, and aggressive chemical conditions.
Key Features
Excellent High-Temperature Resistance
Designed for long-term service in elevated temperatures, typically operating up to +450°C to +650°C depending on reinforcement and treatment.
Strong Chemical Stability
Highly resistant to acids, alkalis, solvents, and oils, making it suitable for a wide variety of corrosive media.
Outstanding Self-Lubrication
Offers excellent flexibility, abrasion resistance, and durability in dynamic sealing applications. Low friction during operation reduces wear on shafts and valve stems, extending equipment service life.
Superior Thermal & Electrical Conductivity
Efficient heat dissipation and conductive properties make it ideal for high-speed rotating machinery and power plant applications.
High Strength & Structural Durability
Carbon fibers provide exceptional tensile strength and stable elasticity, resisting breakage, extrusion, and deformation for long-lasting sealing performance.
Low coefficient of friction
Low coefficient of friction owns low wear of valve stems
Industry
Application
- Pumps
- Valves
- Reactors
- Flanges
- Chemical
- Petroleum
- Chemical Fiber
- Coal Mining
- Power Generation
- Metallurgy
- Acids
- Alkalis
- Organic solvents
- Other corrosive or chemically aggressive fluids
Performance Specifications
Property | Value/Range |
Material | Carbon Fiber |
Pressure | Valves: 200 bar |
Density | 1.2~1.4g/cm3 |
Color | Black |
Temperature Range | –200°C to +350°C |
Pressure Resistance | Up to 30 MPa |
Chemical Resistance | PH 1–14 |
Refractory Fiber Content | >85% |
Fiber Diameter | 2–4 microns |
Fiber Length | 100–250 mm |
Linear Shrinkage (at 980°C, 3h) | <3.5% |
Available Specifications
- Size Range:3 × 3 mm to 50 × 50 mm
- Customization:Special dimensions and non-standard designs can be produced according to customer requirements.
Physical Properties
Carbon fiber packing is made primarily of PAN-based (polyacrylonitrile-based) carbon fibers. When combined with matrix resins such as epoxy, the resulting composite offers mechanical and physical strength comparable to metals, making it exceptionally stable and reliable in demanding industrial applications.
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How to Choose the Right Carbon Fiber Packing?
When selecting carbon fiber packing for your application, consider the following factors:
- Operating Temperature and Pressure: Ensure the packing material can withstand the specific thermal and pressure conditions of your application.
- Chemical Exposure: Check the compatibility of the packing material with the fluids and gases it will be exposed to.
- Equipment Type: Identify whether the application involves dynamic or static sealing to choose the appropriate braid structure and lubricant.
- Lubrication Needs: Determine whether additional lubrication is necessary to enhance performance and reduce wear.
FAQ
Are you factory, or only a trading company?
Factory, and our factory is located in Wangtong town, Jing county, Hengshui, Hebei
Could I get some samples, and how?
No problem, we provide free samples, and it is only needed for you to pay for the shipping charge, your courier account is also ok(such as DHL).
Can you give me some discount?
Usually the discount depends on the quantity. However we can discuss it.
What’s the payment terms?
Our normal practice: 30% deposit of total amount before production, and 70% balance payment before shippment. However this is open for discussion.
How can I get the quotation?
We usually quote within 24hours after we get your inquiry. If you are very urgent to get the price please call us or tell us in your email so that we will regard your inquiry priority.
What is your terms of delivery?
We accept EXW,FOB,CIF,ect. You can choose the one which is the most convenient or cost effective for you.
Can you do further process?
Sure. We also can help our customers do the further such as printing and punching.
Custom Carbon Fiber Packing Manufacturer
We offer tailored carbon fiber packing solutions based on your specific requirements. Customization includes special dimensions and non-standard designs, along with further processing options such as printing and punching to meet diverse application needs.



