PVDF – polyvinylidene fluoride
Polyvinylidene fluoride – PVDF shows a higher tensile strength, pressure resistance and dimensional stability than the related PTFE, but friction and insulation properties are lower. PVDF has a high mechanical strength and toughness at lower temperature and it’s self-extinguishing. The temperature ranges from -30 °C to +150 °C. PVDF shows a high resistance to chlorine, bromine and high-energy radiation.
Types:
- PVDF
- PVDF-ELS (electrically conductive)
Properties:
- high tensile strength
- high mechanical strength
- high rigidity (also at low temperature)
- high chemical resistance
- very low water absorption
- good friction and wear and tear values
- self-extinguishing
- high UV–resistance
- toxic fumes when burned
- relatively high coefficient of thermal expansion
Applications: Gaskets, pumps, rotation discs, valves, flap traps, centrifugals of extraction, fittings, glide tracks…
Shapes of semi-finished products: round rods, sheets
Color: natural,black (PVDF-ELS)
Dimensions of semi-finished products:
- Round rods fi 10mm - fi 200mm (natural)
- Sheets thickness 10mm - 60mm