What is PVDF

What is Polyvinylidene Fluoride? (PVDF)

PVDF is a tough, stable fluoropolymer with distinct engineering advantages. Discovered in 1969 by Dr Heijji Kawai, PVDF has a good performance to cost ratio.

A semi-crystalline thermoplastic, PVDF is used in applications requiring the highest of purity and will withstand harsh chemicals, PVDF is one of the highest radiation resistance plastics available, only seconded by PEEK and Polyimide.

It's highly desirable insolubility and electrical properties results from the polarity of alternating CH2 and CH2 groups on the polymer chain.

PVDF has a low density (1.78/cm3) compared to other fluoropolymers.

Our FL308 is available in Rod, Tube and Sheet form and is processed by Injection moulding, compression moulding and hot moulding. Commonly used in the Semiconductor, defence, chemical and medical industries as well as in the production of lithium-ion batteries.

Properties Values Units Method
Resistance to Weathering Excellent    
Processing Temperature Approx 220oC    
Tensile Strength @ 23oC 50 MPa ASTM D638
Elongation at Break @ 23oC 10-50 % ASTM D638
Thermal Conductivity @ 23oC 0.2 W/m.k ASTM C177
Coefficient of Friction 0.4   ASTM D1894
Impact Strength No Break    
Dielectric Strength 20-25 at 1mm thick KV.mm-1 ASTM D149
Melting Point 170-175 oC  
Continuous Working Temperature 150 oC  
Flame Rating + V-0   UL94
Limiting Oxygen Index 44 % ASTM D2863

The information in this table represents typical figures intended for reference and comparison purposes only 

Key features:

  • Heat Resistance
  • High Abrasion Resistance
  • Low Permeability to most Gases and Liquids
  • Weather Resistant
  • Low Weight
  • Mechanical Strength
  • Radiation Resistance
  • Good Electrical Insulator
  • Resistance to Chemical Corrosion
  • Recyclable 

Typical applications:

  • Pipes and Fittings
  • Valves
  • Cathodes & Anodes in Li-ion Cell Manufacturing
  • High Purity Semi-conductor Applications

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