For decades, industrial operations have relied on high-performance materials to solve complex challenges. Among these, one name stands out for its unparalleled combination of properties: PTFE Teflon Sheet. As a cornerstone of modern engineering, this material offers a unique profile of chemical resistance, thermal stability, and a remarkably low coefficient of friction. At Kaxite Sealing, with over two decades of specialization in advanced polymer solutions, we engineer and supply PTFE sheets that are not just components, but critical enablers for reliability and efficiency across countless applications.
Our commitment is to provide more than just a product; we deliver a performance guarantee. Every Kaxite Sealing PTFE Teflon Sheet is manufactured under stringent quality controls, ensuring consistency, durability, and performance that engineers and procurement specialists can trust. Whether you are designing a new chemical processing system, maintaining high-temperature equipment, or requiring a reliable non-stick surface, understanding the precise specifications and capabilities of PTFE sheet is essential.
Polytetrafluoroethylene (PTFE), commonly known by the brand name Teflon®, is a fully fluorinated, high-molecular-weight polymer. Its unique molecular structure, with strong carbon-fluorine bonds, grants it an exceptional set of characteristics that are difficult to find in any other single material.
We offer a comprehensive range of PTFE sheets tailored for different industrial requirements. Our standard product line includes Virgin PTFE, Filled/Reinforced PTFE, and PTFE Skived Film. Below are the detailed specifications.
| Property | Test Method | Typical Value / Range | Significance for Application |
|---|---|---|---|
| Density | ASTM D792 | 2.14 – 2.20 g/cm³ | Indicates material purity and consistency. |
| Tensile Strength | ASTM D638 | 25 – 35 MPa | Measures resistance to pulling forces; important for load-bearing parts. |
| Elongation at Break | ASTM D638 | 300 – 500% | High elongation signifies excellent toughness and flexibility. |
| Compressive Strength | ASTM D695 | 12 MPa | Key for gaskets and seals under compressive load. |
| Coefficient of Friction (Dynamic) | ASTM D1894 | 0.05 – 0.10 | Critical for low-friction applications like bearings and slides. |
| Continuous Service Temperature | - | -200°C to +260°C | Defines the operational range for thermal applications. | Dielectric Strength | ASTM D149 | 40 – 60 kV/mm | Essential for electrical insulation performance. |
Kaxite Sealing PTFE sheets are available in various forms to suit fabrication needs:
While virgin PTFE is exceptional, certain applications demand improved mechanical strength, wear resistance, or reduced creep (cold flow). Kaxite Sealing offers a range of filled or reinforced PTFE sheets. These compounds incorporate specific fillers to enhance targeted properties while retaining the core benefits of PTFE.
| Filler Type | Typical Filler Percentage | Key Enhanced Properties | Recommended Applications |
|---|---|---|---|
| Glass Fiber | 15% – 25% | Improved compressive strength, reduced creep, better wear resistance. | Heavy-duty bushings, thrust washers, support pads, large gaskets. |
| Carbon / Graphite | 15% – 25% | Enhanced thermal conductivity, improved wear resistance, lower friction. | Piston rings, dynamic seals, bearings in dry or lubricated service. |
| Bronze | 40% – 60% | Greatly improved thermal conductivity, high load capacity, excellent wear resistance. | Bearings for high PV (Pressure x Velocity) applications, wear plates. |
| Molybdenum Disulfide (MoS2) | 5% – 15% | Lower friction, improved wear resistance in non-lubricated conditions. | Self-lubricating gears, slides, and seals where external lubricants are forbidden. |
| Stainless Steel | 40% – 50% | High mechanical strength, excellent creep resistance, good chemical resistance. | Chemical pump components, compressor rings, heavy-load mechanical parts. |
Q: What is the main difference between PTFE and Teflon®?
A: PTFE (Polytetrafluoroethylene) is the generic name for the chemical polymer. Teflon® is a well-known brand name for PTFE and other fluoropolymers owned by Chemours (formerly DuPont). When we refer to a PTFE Teflon Sheet, we are describing a sheet made from PTFE material, which exhibits all the classic "Teflon" properties. Kaxite Sealing manufactures high-quality PTFE sheets that meet or exceed the performance standards associated with the Teflon® name.
Q: Can Kaxite Sealing PTFE sheets be machined or fabricated easily?
A: Yes, PTFE is renowned for its excellent machinability. It can be easily cut, drilled, turned, milled, and stamped using standard workshop equipment with carbide-tipped tools. Its flexibility allows for the creation of complex gaskets, seals, insulators, and components. However, due to its low thermal conductivity, it is important to manage heat buildup during machining. Our technical team can provide detailed machining guidelines for optimal results.
Q: How do I select between Virgin PTFE and a Filled/Reinforced grade?
A: The choice depends entirely on your application's primary demands. Choose Virgin PTFE for maximum chemical purity, the best dielectric properties, and high flexibility. Opt for a filled grade from Kaxite Sealing when you need enhanced mechanical properties: use Glass-filled for general strength and creep resistance, Carbon-filled for wear and conductivity, Bronze-filled for very high load and wear situations, and MoS2-filled for superior self-lubrication. Our engineers can assist in selecting the perfect grade.
Q: Is PTFE safe for use in food processing and medical applications?
A: Virgin PTFE is biologically inert and is approved for food contact by regulatory agencies like the FDA (USA) and EFSA (Europe) under specific regulations. It is non-toxic and does not interact with food or bodily fluids. For such critical applications, it is imperative to use certified Virgin PTFE grades with proper documentation. Kaxite Sealing can supply FDA-compliant PTFE sheet materials with full traceability and compliance certificates.
Q: What are the limitations of PTFE that I should be aware of?
A: While exceptional, PTFE has a few limitations. Its wear resistance in its pure form can be lower than some engineered plastics, which is why filled grades are often used for moving parts. It is susceptible to creep or "cold flow" under sustained heavy loads, which can be mitigated with proper design and filled compounds. Additionally, it can be attacked by certain exotic chemicals like molten alkali metals and fluorine under specific conditions. Always consult the Kaxite Sealing chemical resistance chart for your specific chemical environment.
Q: How does the pricing of PTFE sheet compare to other engineering plastics?
A: PTFE is generally more expensive per kilogram than common plastics like polyethylene or PVC due to its complex manufacturing process and superior properties. However, its total cost of ownership is often lower. Its extreme durability, minimal maintenance (due to non-stick and low friction), and ability to prevent costly downtime or contamination in critical processes make it a highly cost-effective solution over the long term. Kaxite Sealing offers competitive pricing across a wide range of grades and dimensions.
Q: Can you provide custom-sized or custom-formulated PTFE sheets?
A: Absolutely. At Kaxite Sealing, customization is a core part of our service. We regularly produce sheets in non-standard thicknesses and sheet sizes to minimize waste for our customers. Furthermore, we have the capability to develop custom-filled compounds tailored to specific performance requirements, such as unique wear, friction, or electrical properties. Contact our technical sales team with your specifications for a tailored solution.
The versatility of PTFE sheet material makes it indispensable across a broad spectrum of industries. Here are some of the primary applications:
For professionals seeking a material that delivers unwavering performance under the most demanding conditions, Kaxite Sealing's PTFE Teflon Sheet represents the benchmark. Our deep expertise ensures you receive not only a product but also the technical support to integrate it successfully into your project, maximizing longevity, safety, and operational efficiency.
