Flexible Graphite Sheet
Flexible graphite sheet made from high-purity natural graphite for industrial sealing, gasket manufacturing, insulation and thermal management applications.
Flexible & Compressible
Chemical Resistance
Easy Processing
THICKNESS RANGE
0.025 mm – 2.0 mm
DENSITY RANGE
Approx. 1.0 – 1.7 g/cm³
STANDARD WIDTH
600 mm / 1000 mm, custom widths available
SUPPLY FORM
Sheets, rolls, reinforced and laminated options
PRODUCT SPECIFICATIONS AND DETAILS
Flexible Graphite Sheet is a high-performance graphite material manufactured from purified natural graphite through expansion and calendering. Supplied in sheet or roll form, it offers excellent flexibility, compressibility, chemical stability, and thermal resistance for industrial sealing, insulation, heat shielding, and thermal management applications.
Compared with graphite powder or rigid graphite blocks, flexible graphite sheet provides a more practical and application-ready form for gasket manufacturing, flange sealing, valve interfaces, pump assemblies, heat barriers, and custom converted graphite components. QDZRT Graphite supplies plain, reinforced, laminated, and custom-cut flexible graphite sheet for OEM customers, sealing fabricators, and industrial processors worldwide.
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Product Overview
Flexible Graphite Sheet is commonly positioned between raw graphite materials and finished sealing products. It offers more engineered performance than graphite powder while remaining more adaptable than rigid machined graphite parts. Depending on thickness and structure, it can be used directly or further processed into gasket sheets, sealing rings, die-cut parts, wrapping materials, thermal barriers, and special-shaped industrial inserts.
In thinner gauges, this material is also referred to in many markets as graphite foil. Reinforced or laminated grades are often selected where better handling strength, dimensional stability, or downstream fabrication performance is required.
Main Features
- Excellent flexibility for sheet, roll, and converted component applications
- Good compressibility and recovery for sealing-related use
- Stable performance in high-temperature industrial environments
- Strong resistance to many industrial chemicals, oils, steam systems, and process media
- Low permeability and good conformity to uneven sealing surfaces
- Easy to cut, slit, punch, laminate, wrap, and fabricate into finished parts
- Available in plain, reinforced, laminated, and customized structures
Why Buyers Choose Flexible Graphite Sheet
| Key Advantage | Description |
|---|---|
| High Temperature Resistance | Suitable for industrial environments where many conventional sealing materials may lose stability under elevated temperatures. |
| Chemical Stability | Performs well in a wide range of oils, steam-related systems, and many industrial process media. |
| Compressibility and Conformability | Helps adapt to flange surfaces and interface irregularities, improving sealing reliability in practical installation conditions. |
| Processing Flexibility | Can be supplied as rolls, sheets, reinforced laminates, gasket blanks, and custom-cut finished parts. |
| Wide Industrial Use | Suitable for sealing, insulation, petrochemical equipment, power systems, mechanical assemblies, and thermal management applications. |
Enhanced Technical Parameters
The appropriate grade should be selected according to operating temperature, media, pressure, reinforcement requirement, and final conversion method. QDZRT Graphite supports both standard supply and customized solutions for project-based procurement.
| Parameter | Typical Range / Option | Notes |
|---|---|---|
| Base Material | Purified natural graphite | Processed through expansion and calendering |
| Product Form | Sheet / roll / reinforced sheet / laminated sheet / custom-converted part | Available for standard and OEM supply |
| Thickness | 0.025 mm to 2.0 mm | Different grades available for different applications |
| Density | Approx. 1.0 to 1.7 g/cm³ | Varies according to thickness and grade |
| Standard Width | 600 mm / 1000 mm typical | Custom widths available upon request |
| Supply Length | Varies by thickness and grade | Roll length or sheet size can be matched to the order |
| Structure Options | Plain / reinforced / laminated | Selected according to handling strength and end-use requirements |
| Carbon Content | Available upon request | Can be matched according to target application |
| Sulfur-Controlled Grade | Available | Suitable for applications requiring tighter material control |
| Ash Content / Other Detailed Data | Available upon request | Detailed specifications can be confirmed by grade |
| Conversion Capability | Slitting / cutting / punching / laminating / die-cutting / special-shaped fabrication | Supports downstream gasket and sealing production |
| Packaging | Rolls, flat sheets, gasket blanks, or custom export packing | Protective packaging available for transport and storage |
Reference Standard Size Options
The following sizes are typical reference options. Specific thickness-density combinations can be selected according to actual purchasing and application requirements.
| Thickness Range | Typical Density | Typical Standard Size |
|---|---|---|
| 0.025-0.13 mm | Approx. 1.4-1.7 g/cm³ | 600 mm × 100 m |
| 0.15 mm | Approx. 1.3-1.7 g/cm³ | 1000 mm × 100 m or 600 mm × 80 m |
| 0.2 mm | Approx. 1.1-1.4 g/cm³ | 1000 mm × 50 m / 100 m |
| 0.25-0.5 mm | Approx. 1.0-1.4 g/cm³ | 1000 mm × 50 m |
| 0.6 mm | Approx. 1.0 g/cm³ | 1000 mm × 60 m |
| 0.8 mm | Approx. 1.0 g/cm³ | 1000 mm × 50 m |
| 1.0 mm | Approx. 1.0 g/cm³ | 1000 mm × 40 m |
| 1.5-2.0 mm | Approx. 1.0 g/cm³ | 1000 mm × 1000 mm |
Common Product Forms
- Plain Flexible Graphite Sheet
- Flexible Graphite Roll Material
- Reinforced Flexible Graphite Sheet
- Laminated Graphite Sheet
- Graphite Gasket Blank Material
- Die-Cut Graphite Sealing Parts
- Custom Thermal Barrier and Industrial Insert Parts
Typical Applications
| Application Area | Typical Use | Main Benefit |
|---|---|---|
| Industrial Sealing | Gasket sheets, flange sealing, valve interfaces, pump sealing support | Compressibility, conformity, and media resistance |
| Petrochemical Equipment | Static sealing and process equipment interfaces | Stable performance under heat and chemical exposure |
| Power and Energy Systems | Sealing layers, thermal barriers, heat-related assemblies | Thermal resistance and service stability |
| Mechanical Equipment | Custom-cut interface materials and shaped sealing parts | Easy fabrication and assembly adaptability |
| Thermal Management | Graphite foil and flexible sheet structures for heat spreading or shielding | Thin form factor with functional graphite properties |
Processing Advantages
One of the major commercial strengths of Flexible Graphite Sheet is its excellent downstream processability. It can be slit into rolls, cut into sheets, punched into gasket blanks, laminated with reinforcement layers, or fabricated into special-shaped parts according to drawings or application requirements.
This makes the material highly suitable for gasket converters, sealing manufacturers, thermal management processors, and industrial OEM buyers that require both stable material performance and efficient secondary processing.
Customization and OEM Support
- Thickness adjustment for different sealing or insulation requirements
- Density selection based on application and installation conditions
- Plain, reinforced, or laminated structure options
- Custom sheet size, roll size, and cut-to-size supply
- Die-cut, punched, laminated, and shaped-part conversion
- Project-based supply for gasket, sealing, insulation, and thermal barrier applications
Purchasing Considerations
When selecting flexible graphite sheet, industrial buyers usually evaluate thickness, density, purity consistency, reinforcement requirement, target operating condition, process media, and the final conversion method. In many cases, the right grade depends more on the actual sealing structure and service environment than on a single headline parameter.
For this reason, it is beneficial to work with a supplier that can provide both standard material grades and custom conversion support. QDZRT Graphite supports repeated bulk supply as well as customized project procurement for different industrial applications.
Packaging and Supply
Flexible Graphite Sheet can be supplied in roll form, flat sheet form, gasket blank form, or converted part form according to product grade and customer requirements. Standard export packaging can be arranged to help protect the material from edge damage, moisture exposure, deformation, and contamination during transportation and storage.
QDZRT Graphite supports both regular bulk supply and customized production for special thicknesses, densities, reinforcement structures, and finished converted parts.
FAQ
What is flexible graphite sheet used for?
Flexible graphite sheet is widely used for industrial sealing, flange gaskets, valve and pump interfaces, thermal barriers, insulation structures, and custom converted graphite parts.
What is the difference between flexible graphite sheet and graphite foil?
In many markets, thinner flexible graphite sheet is also referred to as graphite foil. The exact naming may vary by thickness, density, and end-use application. Reinforced and laminated products are usually specified separately according to structure.
Can QDZRT Graphite supply reinforced flexible graphite sheet?
Yes. QDZRT Graphite can supply plain, reinforced, and laminated flexible graphite sheet according to handling requirements, dimensional stability needs, and downstream processing conditions.
Can you make die-cut graphite gasket parts?
Yes. The material can be converted into gasket blanks, punched parts, die-cut sealing parts, and special-shaped industrial components based on drawings or application requirements.
What information is needed for quotation?
For a faster quotation, buyers can provide thickness, density preference, sheet or roll size, reinforcement requirement, application, operating condition, and whether further conversion such as die-cutting or lamination is needed.
Can you customize thickness, density, and size?
Yes. QDZRT Graphite supports customized thickness, density, width, length, reinforcement structure, and finished conversion method for project-based supply.
Contact QDZRT Graphite
If you need flexible graphite sheet for gasket manufacturing, sealing projects, insulation systems, or thermal barrier structures, QDZRT Graphite can provide matching supply support based on your required thickness, density, size, reinforcement type, and conversion method.
Please send us your application, required dimensions, and material structure requirements for a suitable product recommendation and quotation.
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