Flexible Corrugated Graphite Tape
Model:GR103
Flexible Corrugated Graphite tape Designed for use as packing, just with wrapping tape to stem or shaft, and when stuffing, endless packing can be formed. It is easy installed for small diameter valves, and can also be used for emergencies when spare packings are not available.
KXT GR103 Flexible Corrugated Graphite Tape – High‑Purity, Self‑Adhesive Sealing Tape for Valves, Pumps & Field Gasketing
Kaxite Sealing introduces the KXT GR103 Flexible Corrugated Graphite Tape – a versatile, high‑performance sealing material manufactured from ≥99% pure expanded graphite. The tape features a unique corrugated (crinkled) surface profile that enhances flexibility and conformability, making it ideal for valve stem packing, pump stuffing box seals, thread sealing, and form‑in‑place gasketing on irregular or damaged flange surfaces.
Why KXT GR103? This graphite tape offers exceptional chemical resistance across pH 0‑14 (except strong oxidizers), withstands extreme temperatures from ‑240°C to +850°C in oxidizing atmospheres and up to +3000°C in inert environments, and provides excellent self‑lubricating properties. Available with or without a pressure‑sensitive adhesive backing, the tape can be quickly wrapped around valve stems or shafts to create a reliable, endless packing seal without the need for specialized tooling.
As a leading graphite tape supplier in China, Kaxite offers standard thicknesses of 0.5 mm and 0.8 mm and widths from 8 mm to 30 mm, with custom dimensions available upon request. The tape is also the preferred raw material for manufacturing die‑formed graphite rings. Request a free sample or get a wholesale quote today.
Purity≥ 99% Carbon
Thickness0.5 / 0.8 mm
Width Range8 – 30 mm
Temp. (Oxidizing)‑240°C to +850°C
Temp. (Inert)Up to +3000°C
Mounting Pressure250 N/mm²
Why KXT GR103 Flexible Corrugated Graphite Tape?
- ✅ Extreme Temperature Resistance – From ‑240°C to +850°C (oxidizing) and up to +3000°C (inert)
- ✅ Broad Chemical Compatibility – Resists pH 0‑14 (except strong oxidizers), ideal for aggressive media
- ✅ Corrugated Surface – Enhanced flexibility and conformability for irregular or damaged surfaces
- ✅ Self‑Lubricating – Low friction prevents galling and eases valve stem operation
- ✅ Self‑Adhesive Option – Pressure‑sensitive backing for quick, secure installation
- ✅ Endless Packing Formation – Wrap tape around stem/shaft to create continuous packing without splicing
Available Configurations – Tape Grades & Options
Kaxite offers the KXT GR103 flexible corrugated graphite tape in multiple configurations to suit diverse sealing applications. All tapes are manufactured from high‑purity expanded graphite with full material traceability.
KXT GR103 – Standard Corrugated Graphite Tape
Manufactured from ≥99% pure expanded graphite with a corrugated (crinkled) surface profile that enhances flexibility and conformability. Available in thicknesses of 0.5 mm and 0.8 mm and widths of 8, 10, 12, 15, 20, 25, and 30 mm. Supplied in spools for easy handling and storage. Suitable for valve stem packing, pump stuffing box seals, and gasket fabrication.
KXT GR103‑A – Self‑Adhesive Graphite Tape
Features a pressure‑sensitive adhesive backing that allows the tape to be securely attached to valve stems, shafts, or flange surfaces without additional fastening. The adhesive layer does not compromise the sealing performance and is ideal for emergency repairs and quick field installations. Available in the same thickness and width range as the standard tape.
Bulk Spools & Custom Dimensions
For high‑volume users, we offer bulk spool packaging with custom spool lengths. Custom thicknesses (e.g., 0.3 mm, 1.0 mm) and widths (up to 50 mm) are available upon request. The tape can also be supplied in pre‑cut lengths or as part of a complete gasket fabrication kit. Please contact us for your specific requirements.
* All configurations can be supplied with or without adhesive, and in custom dimensions. Contact our technical team for material selection guidance.
ISO 9001:2015 ≥ 99% Carbon Purity Self‑Adhesive Option Corrugated Surface Custom Sizes Available
Key Advantages of KXT GR103 Flexible Corrugated Graphite Tape
Exceptional Thermal Stability – Withstands extreme temperatures from cryogenic ‑240°C up to +850°C in air and +3000°C in inert atmospheres, outperforming most other packing materials.
Superior Chemical Inertness – Expanded graphite is resistant to virtually all chemicals except strong oxidizers, making it suitable for acidic, alkaline, and solvent service.
Corrugated Profile for Flexibility – The crinkled surface structure enhances tape flexibility, allowing it to conform easily to irregular surfaces and complex geometries.
Self‑Lubricating & Low Friction – Reduces wear on valve stems and pump shafts, simplifies disassembly, and extends equipment service life.
Quick & Easy Installation – Can be wrapped around stems or shafts to form endless packing without cutting or splicing – ideal for emergency repairs and field maintenance.
Excellent Compressibility & Resilience – Provides a tight seal under mounting pressure up to 250 N/mm², with low creep relaxation for long‑term reliability.
Technical Specifications – KXT GR103 Flexible Corrugated Graphite Tape
The table below lists typical properties of our KXT GR103 flexible corrugated graphite tape. All values are based on standardized test methods. Custom grades and dimensions are available upon request.
| Property | Typical Value | Test Method |
|---|---|---|
| Carbon Content | ≥ 99% | — |
| Thickness (Standard) | 0.5 mm / 0.8 mm | — |
| Width Range | 8, 10, 12, 15, 20, 25, 30 mm | — |
| Density (g/cm³) | ~1.0 (customizable 0.7‑1.5) | ASTM D792 |
| Temperature (Oxidizing) | ‑240°C to +850°C | — |
| Temperature (Inert) | Up to +3000°C | — |
| Max. Mounting Pressure | 250 N/mm² | — |
| pH Range | 0‑14 (except strong oxidizers) | — |
| Thermal Conductivity (W/m·K) | 140 (parallel) / 5 (through) | — |
| Leachable Chlorides (ppm) | ≤ 50 | — |
* Custom thicknesses, widths, density grades, and low‑chloride variants are available upon request. Contact our technical team for application‑specific recommendations.
Flexible Graphite Tape vs Other Valve Packing Materials – Quick Comparison
| Property | Graphite Tape | PTFE Tape | Braided Packing | Non‑Asbestos |
|---|---|---|---|---|
| Max. Temp. (°C) | 850 / 3000 | 260 | 450‑650 | 250 |
| Chemical Resistance | Excellent (pH 0‑14) | Excellent | Good | Good |
| Self‑Lubricating | Yes | Yes | Varies | No |
| Endless Packing | Yes (wrap to form) | Yes | No (spliced) | No |
| Conformability | Excellent | Good | Moderate | Moderate |
| Installation Time | Minimal | Minimal | Moderate | Moderate |
| Relative Cost | Low | Moderate | Moderate | Low |
* Flexible corrugated graphite tape offers the widest temperature range, excellent chemical resistance, and the unique ability to form endless packing without splicing – making it the ideal choice for valve and pump sealing applications.
Typical Applications & Industries
Valve Stem Packing Wrapping tape around valve stems to create reliable, leak‑free seals in gate, globe, and ball valves.
Pump Stuffing Boxes Field‑formed packing for centrifugal and reciprocating pumps, especially in chemical and high‑temperature service.
Form‑In‑Place Gasketing Custom gaskets for irregular flanges, heat exchanger covers, manholes, and handholes where standard gaskets are unavailable.
Thread Sealing Wrapping around pipe threads and fittings to prevent leakage in high‑temperature and corrosive fluid systems.
Die‑Formed Graphite Rings Raw material for manufacturing precision die‑formed packing rings used in reciprocating compressors and pumps.
Emergency Repairs Quick, reliable sealing solution for emergency maintenance in oil & gas, chemical, and power generation plants.
Why Choose Kaxite for Flexible Graphite Tape?
30+ Years of Graphite Expertise – Kaxite has been manufacturing expanded graphite products since 1990, with unmatched knowledge of material processing and application engineering.
ISO 9001:2015 Certified – Our manufacturing processes are fully certified, with strict quality controls from raw material to finished product.
Custom Manufacturing Capability – We offer custom thicknesses, widths, adhesive options, and spool lengths to meet your specific requirements.
Competitive Factory‑Direct Pricing – As a direct manufacturer, we supply cost‑effective sealing solutions without compromising quality.
Fast Technical Support – Our engineering team provides rapid responses on material selection and application questions – within 2 business hours.
Global Supply Chain – We ship to over 40 countries with flexible packaging and shipping options to meet your project deadlines.
Field‑Proven Reliability: Kaxite flexible graphite tape is trusted by maintenance engineers and plant operators worldwide for its exceptional performance in high‑temperature, corrosive, and emergency sealing applications.
Quality Assurance & Regulatory Compliance
Kaxite Sealing is an ISO 9001:2015 certified manufacturer. Our flexible corrugated graphite tape is produced under strict process controls – from graphite flake selection, chemical treatment, thermal exfoliation, calendering, corrugating, to final slitting and spooling. Each roll is inspected for thickness, width, density, adhesive strength (if applicable), and surface quality. We provide material test certificates (MTCs) and can supply chloride content analysis upon request, ensuring full traceability.
- ISO 9001:2015
- ≥ 99% Carbon Purity
- Low Chloride (≤50 ppm)
- 100% Dimensional Inspection
- Adhesive Strength Verified
- Full Material Traceability
Quality you can depend on – our graphite tape is trusted by maintenance engineers in critical service applications worldwide.
Custom Manufacturing & OEM Services – Free Sample Available
As a professional expanded graphite tape manufacturer in China, we offer complete customization to meet your exact specifications. Request a free sample or get a bulk quote today:
- Custom thicknesses (0.3 mm to 1.5 mm)
- Custom widths (up to 50 mm or more)
- Self‑adhesive or non‑adhesive backing
- Density grades: 0.7–1.5 g/cm³
- Low‑chloride grades for nuclear/stainless steel applications
- Private label packaging for distributors
- Pre‑cut lengths and custom spool sizes
Request a free sample or ask for a tailored bulk quote – our team responds within 24 hours with competitive factory pricing and lead‑time estimates.
Frequently Asked Questions About Flexible Corrugated Graphite Tape
- Q: What is the difference between corrugated and non‑corrugated graphite tape?
- A: Corrugated (crinkled) graphite tape features a textured surface that significantly increases flexibility and conformability compared to smooth tape. This allows the tape to wrap more easily around valve stems and shafts, conform to irregular surfaces, and form tighter seals. The corrugation also improves the tape's ability to withstand compression without cracking or delaminating.
- Q: What is the maximum temperature for flexible graphite tape?
- A: Flexible graphite tape can withstand continuous service from ‑240°C to +850°C in oxidizing environments (air) and up to +3000°C in inert atmospheres. This makes it the material of choice for both cryogenic and extreme high‑temperature valve and pump sealing applications.
- Q: What chemicals should I avoid with graphite tape?
- A: Expanded graphite is chemically inert to virtually all media except strong oxidizers such as concentrated nitric acid, chromic acid, and halogens (chlorine, fluorine) at high temperatures. It also has limited resistance to certain molten metals. For most chemical service applications, graphite tape offers excellent compatibility across pH 0‑14.
- Q: How do I install the graphite tape as valve packing?
- A: Installation is simple: wrap the tape tightly around the valve stem or shaft, overlapping each layer slightly. The tape can be layered to build up the desired packing depth. When the tape is compressed in the stuffing box, it forms a dense, continuous seal ring without the need for cutting or splicing. For best results, follow the manufacturer's recommended packing depth and compression torque.
- Q: Can you supply the tape in custom sizes and packaging?
- A: Yes, we offer full customization including custom thicknesses (0.3 mm to 1.5 mm), custom widths (up to 50 mm), with or without adhesive, and custom spool lengths. We also offer private label packaging for distributors. Contact us with your specifications for a custom quote.
Partner with Kaxite Sealing – your trusted flexible corrugated graphite tape manufacturer and supplier in China. With decades of graphite processing expertise and a steadfast commitment to quality, we deliver sealing solutions that perform reliably in the most demanding high‑temperature, cryogenic, and chemical service applications. Request a free sample or get a tailored bulk quote today – our engineers respond within 24 hours.
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