Polyvinylidene fluoride (PVDF)
What is PVDF?
PVDF stands for polyvinylidene fluoride. It is a part-crystalline food-approved thermoplastic, notable for its good chemical resistance.
PVDF is supplied in sheets and rods in a natural colour.
Several companies produce PVDF, and the material is known under several brand names such as TECAFLON™ og Symalit®.
The characteristics and advantages of PVDF
PVDF is a material with a high operating temperature and high density at 1.78 g/cm3. In other words PVDF is one of the heavier construction plastics, only exceeded by PFTE, which has density at 2.18 g/cm3.
Furthermore water absorption is low, strength is high, and qualities of gliding and wear are good, allowing it to perform in exacting environments over a long service life.
It possesses good chemical resistance and high UV-resistance.
In certain applications, PVDF can be subject to cold flow.
Want to know more about PVDF and compare it to other construction plastics? Take a look in our table of plastics.
PVDF applications
Due to the good chemical resistance against alkaline substances, for instance, PVDF can be especially useful in withstanding harsh cleaning agents: examples are the medical and dairy sectors.
PVDF is often used in environments with relatively high operating temperatures (up to 150 °C) and where there are requirements for low water absorption.
The material is also useful in environments exposed to UV.
PVDF is suitable in products such as:
- Pump parts
- Valves
- Gaskets
- Fittings
Food-approved PVDF
When you order PVDF items from us, they are supplied as FCM-approved as standard.
Processing PVDF
PVDF can be CNC-turned or machined.
If you have any questions about PVDF or its processing, please do not hesitate to contact us.
