PVDF Price & Supply — Buy Polyvinylidene Fluoride Resin, Film & Tubing

What is Polyvinylidene fluoride?

Polyvinylidene fluoride—often abbreviated to PVDF and sometimes referred to as polyvinylidene difluoride or simply PVDF plastic—is a high‑performance fluoropolymer renowned for its purity, durability and processability. Produced by polymerizing vinylidene difluoride, this specialty plastic has the chemical formula (C₂H₂F₂)n and a comparatively low density of around 1.78 g/cm³, which makes it lighter than many other fluoropolymers. Because of its resistance to solvents, acids and hydrocarbons, PVDF appears in an array of industries—from chemical processing and semiconductors to medical devices and defence applications.

Structure and fundamental properties

In 1969 researchers observed that PVDF exhibits strong piezoelectricity, with poled films showing coefficients of 6–7 pC N⁻¹. The polymer has a glass‑transition temperature near –35 °C and is typically 50–60 % crystalline; to develop its piezoelectric properties, the material is mechanically stretched and then poled under tension. Different chain conformations result in several crystalline phases: the β‑phase, characterized by an all‑trans configuration, provides the highest remnant polarization and is therefore favored for sensors, transducers and lithium‑ion batteries.

PVDF melts at 170–175 °C, can be processed continuously up to around 150 °C and has a density of about 1.78 g/cm³. Mechanical strength is notable: unreinforced grades show tensile strengths of 40–50 MPa. Its dielectric strength (20–25 kV/mm) and high dielectric constant (~8.4) allow it to serve as an insulator or piezoelectric film. Compared with PTFE, PVDF has a lower melting point and slightly lower chemical inertness but offers higher tensile strength and easier melt‑processability. The combination of mechanical and electrical characteristics has led to its use in PVDF sensors, airflow sensors, piezoelectric transducers and membranes that deliver both hydrophobic and hydrophilic performance.

Forms, products and applications

BACH INDUSTRY AG offers PVDF in a broad range of forms. For processing and compounding, customers can order polyvinylidene fluoride resin or finely ground polyvinylidene fluoride powder for manufacturing custom compounds. Thermoformed shapes include polyvinylidene fluoride film, sheet and plate, as well as extruded pipe, tubing and heat‑shrink tubing. For additive manufacturing and specialized equipment we supply PVDF filament and mesh. Beyond these standard forms, our catalogue extends to polyvinylidene fluoride binder for lithium‑ion battery cathodes, suture material for surgical devices, fishing line for extreme environments, and PVDF coatings, paints and finishes used to protect architectural facades, such as the coatings that give long‑lasting gloss to landmark buildings. Because the polymer is melt‑processable and offers dimensional stability across a wide temperature range, fabricators can reliably extrude or injection‑mould complex shapes.

Membrane technology is another strength. Hydrophilic PVDF membrane filters, PVDF ultrafiltration membranes and composite PVDF–PTFE membranes provide excellent chemical resistance and thermal stability. They are widely used in water treatment, biopharmaceutical filtration and laboratory protein blotting. The material’s biocompatibility and FDA compliance below its degradation temperature make it attractive for medical devices and food‑contact applications. Similarly, PVDF’s resistance to radiation and UV exposure has led to adoption in aerospace components and high‑energy environments.

In electronics and sensors, PVDF’s negative d₃₃ coefficient allows it to compress or extend under an electric field, enabling piezoelectric sensors, flexible pressure transducers and even energy‑harvesting films. The β‑phase’s high dipole moment makes PVDF suitable for high‑frequency applications such as thermal camera sensors, while its dielectric constant supports use as a lithium‑ion battery binder or separator. For designers seeking piezoelectric performance with flexibility, the polymer provides an appealing alternative to ceramic materials.

Chemistry, processing and compatibility

Chemically, PVDF is a homopolymer of vinylidene difluoride; however, copolymers with hexafluoropropylene or trifluoroethylene can adjust crystallinity and increase flexibility. Radical polymerization remains the primary manufacturing route, and the polymer’s relatively low melting point compared with other fluoropolymers simplifies extrusion, injection moulding and welding operations. Processing from solution—such as casting or spin‑coating—employs solvents like dimethylformamide or butanone. Compared with PTFE and perfluorinated fluorocarbons, PVDF offers superior mechanical strength and abrasion resistance, but it is slightly less chemically inert. It exhibits excellent resistance to organic solvents, acids and oxidizing agents and maintains low permeability to gases and liquids, qualities that make it attractive for piping systems and fuel cell components. Biocompatibility and low toxicity further extend its suitability to life‑science uses.

Buying and sourcing considerations

Procurement teams searching for polyvinylidene fluoride price, cost or suppliers will find that price levels vary with feedstock costs, regional supply, and the specific form required. To simplify decision‑making, BACH INDUSTRY AG consolidates multiple product categories—from PVDF resin, powder, film and sheet to specialized tubing and heat‑shrink products—under one roof. We also offer PVDF mesh, filament, binder, suture and even fishing line for niche applications. Our extensive inventory reduces lead times and ensures consistent quality across all polyvinylidene fluoride products.

For buyers who need brand‑name materials, we source well‑known PVDF grades such as Kynar and Solef, as well as materials supplied by Sigma‑Aldrich, Merck, SRL and IndiaMART. All products are accompanied by comprehensive SDS (safety data sheet) documentation, CAS number information (24937‑79‑9) and HS codes to facilitate regulatory compliance and international shipping. We serve customers across Switzerland, Germany, Austria, Liechtenstein, Belgium and Africa, providing competitive prices and transparent cost structures. Whether clients are evaluating polyvinylidene fluoride suppliers for large‑volume orders or seeking just a small batch to complete a research project, our sales engineers can recommend the most cost‑effective solution based on the intended application.

Comparisons with other polymers

When selecting materials, engineers often compare PVDF with PTFE, polypropylene and other polyolefins. PTFE is fully fluorinated, melts at 327 °C and offers unmatched chemical inertness but suffers from low mechanical strength and is not melt‑processable. PVDF, by contrast, melts at 177 °C, provides tensile strength of 40–50 MPa and can be readily extruded or injected. Polypropylene and general polyolefin pipes are less expensive but lack the high temperature capability, abrasion resistance and dielectric properties of PVDF. For applications where a balance of chemical resistance, mechanical strength and ease of fabrication is required—such as halogen piping, PVDF piping systems, ultrafiltration membranes or piezoelectric sensors—PVDF offers a superior solution.

Conclusion

PVDF’s combination of purity, mechanical strength, chemical resistance and piezoelectricity explains its rising prominence in modern technology. Its ability to be processed into resin, powders, films, sheets, pipes, tubing and even specialized fabrics allows it to meet diverse industrial demands. With the global PVDF market expected to more than double by 2035 and regional price dynamics emphasizing the need for reliable suppliers, securing a trusted sourcing partner is essential. BACH INDUSTRY AG stands ready to meet this demand. We offer competitive pricing and comprehensive product support across Switzerland, Germany, Austria, Liechtenstein, Belgium and Africa, ensuring that clients can buy high‑quality polyvinylidene fluoride products with confidence.