Polyvinylidene Fluoride, commonly known as PVDF, is a high-performance thermoplastic polymer. PVDF sheets are semi-crystalline products renowned for their exceptional combination of properties, including outstanding chemical resistance, high purity, excellent weathering stability, and good mechanical strength. These sheets are engineered to perform reliably in the most demanding environments where other plastics might fail, making them a cornerstone material in industries ranging from chemical processing to semiconductor manufacturing and architectural design.
At Kaxite Sealing, we manufacture PVDF sheets to the highest quality standards, ensuring they deliver consistent performance and longevity. Our products stand out due to several key advantages:
Our PVDF sheets are available in a comprehensive range of sizes, thicknesses, and grades to meet diverse application requirements. Below are the detailed technical parameters.
| Sheet Size (mm) | Available Thickness (mm) | Standard Color |
|---|---|---|
| 1000 x 2000 | 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 25, 30, 40, 50 | Natural (Translucent White), Black |
| 1500 x 3000 | 2, 3, 5, 8, 10, 12, 15, 20, 25, 30 | Natural (Translucent White), Black |
| Custom Sizes | 1 - 50 mm (upon request) | Natural, Black, Custom Colors (MOQ applies) |
| Property | Test Method | Typical Value | Unit |
|---|---|---|---|
| Density | ASTM D792 | 1.78 | g/cm³ |
| Tensile Strength (Yield) | ASTM D638 | 50 - 55 | MPa |
| Elongation at Break | ASTM D638 | 10 - 50 | % |
| Flexural Modulus | ASTM D790 | 2000 - 2200 | MPa |
| Izod Impact (Notched, 23°C) | ASTM D256 | 160 - 200 | J/m |
| Heat Deflection Temp (0.45 MPa) | ASTM D648 | 150 - 155 | °C |
| Continuous Service Temperature | - | -40 to +140 | °C |
| Coefficient of Linear Thermal Expansion | ASTM D696 | 8 - 14 x 10-5 | /°C |
| Flammability Rating | UL 94 | V-0 | - |
| Water Absorption (24 hrs) | ASTM D570 | < 0.04 | % |
The unique property profile of PVDF sheets opens doors to numerous critical applications across various sectors.
What is the main difference between PVDF and PTFE (Teflon®)?
While both are fluoropolymers with excellent chemical resistance, PVDF offers higher mechanical strength, stiffness, and better abrasion resistance than PTFE. PVDF is also easier to machine and can be welded using standard thermoplastic techniques, whereas PTFE cannot be melt-processed easily. PTFE generally has a wider chemical resistance and higher continuous use temperature.
Can Kaxite Sealing PVDF sheets be used outdoors?
Yes, absolutely. One of the standout features of PVDF is its exceptional resistance to ultraviolet (UV) radiation and weathering. It does not degrade, become brittle, or significantly discolor after years of exposure to sunlight, rain, and atmospheric pollutants. This makes it a premier choice for architectural cladding and outdoor industrial applications.
Are your PVDF sheets suitable for food contact applications?
Yes, Kaxite Sealing offers PVDF grades that comply with relevant FDA regulations for food contact. These materials are produced with high-purity resins and are suitable for applications involving food processing, handling, and storage. Certificates of compliance are available upon request.
What is the maximum continuous service temperature for PVDF sheets?
Kaxite Sealing PVDF sheets have a maximum continuous service temperature of approximately 140°C (284°F) under mechanical load. For short-term exposure, they can withstand temperatures up to 150°C. It is important to consider the specific chemical environment, as aggressive media may lower the practical temperature limit.
How do I fabricate and join PVDF sheets?
PVDF is readily fabricated using standard metalworking and woodworking tools. It can be sawed, drilled, milled, and turned. For joining, the most common methods are:
1. Hot Gas Welding: The preferred method for strong, leak-tight seams, especially for tanks and linings.
2. Butt Welding: Used for joining sheets or pipes.
3. Solvent Welding: Possible with specific solvents, but not as common as thermal welding.
4. Mechanical Fastening: Using bolts, rivets, or clamps with appropriate gaskets.
We recommend using tools dedicated to plastics to avoid contamination.
Does PVDF sheet have good resistance to acids and bases?
PVDF offers excellent resistance to a wide range of acids, bases, and halogens. It performs exceptionally well with strong mineral acids (like hydrochloric, sulfuric, and nitric acids at moderate concentrations), strong bases, and oxidizing agents. However, it is not recommended for use with strong polar solvents (e.g., some ketones, esters, and amines) at elevated temperatures. Always consult the Kaxite Sealing chemical resistance chart for your specific chemical and conditions.
Can Kaxite Sealing provide custom-sized or colored PVDF sheets?
Yes, Kaxite Sealing specializes in providing tailored solutions. We offer custom cutting to specific dimensions from our standard stock sizes. We also provide PVDF sheets in custom colors, though this is subject to minimum order quantities (MOQ) due to the production process involving compounding pigments with the resin. Our technical team can advise on the best approach for your project.
What quality certifications are associated with your PVDF sheets?
Our manufacturing process adheres to strict quality control protocols. Our PVDF sheets are produced from premium-grade raw materials. While specific certifications can be provided based on the order and application, our materials are known to meet the requirements of standards such as ASTM D3222 for PVDF plastic materials. Material test reports (MTRs) and certificates of conformity are available.
How should PVDF sheets be stored and handled before use?
Store sheets in a cool, dry, and dust-free environment away from direct sunlight and heat sources. Keep them flat on a level surface or stored vertically in racks to prevent warping or bending. Although PVDF is tough, the sheet edges can be sharp; handle with appropriate gloves. Always clean the surface with isopropyl alcohol or a mild detergent before fabrication or bonding to remove any surface contamination.
Selecting the right material supplier is as critical as selecting the material itself. Kaxite Sealing distinguishes itself through:
