PVDF is a vinylidene-fluoride-based polymerisate outstanding for its excellent chemical resistance, excellent machinability and universal applicability. Because of its special properties Polystone® PVDF is especially suited for applications in the chemical industry. Its high purity makes it the ideal material for the semiconductor industry.
Type of product
Compression moulded sheets, extruded sheets, round rods, square tubes, U profiles, welding rods, coils
Special properties
- High temperature resistance
- Outstanding chemical resistance
- Low coefficient of friction
- Excellent ageing properties
- Good electrical properties
- Almost no moisture absorption
- Excellent weldability
Colours
Black, Natural
Typical areas of application
- Clean room technology
- Semiconductor industry
- Galvanotechnology
- Tank linings
- Pump housings and impellers
- Seals
- Fittings
Technical data
Test Method | Unit | Value | |
---|---|---|---|
General Properties | |||
Density | DIN EN ISO 1183-1 | g/cm3 | 1,78 |
Water absorption | DIN EN ISO 62 | % | <0,04 |
Flammability (Thickness 3 mm / 6 mm) | UL 94 | V0 | |
Mechanical Properties | |||
Yield stress | DIN EN ISO 527 | MPa | 55 |
Elongation at break | DIN EN ISO 527 | % | 30 |
Tensile modulus of elasticity | DIN EN ISO 527 | MPa | 2200 |
Notched impact strength (charpy) | DIN EN ISO 179 | kJ/m2 | 15 |
Shore hardness | DIN EN ISO 868 | scale D | 77 |
Thermal Properties | |||
Melting temperature | ISO 11357-3 | °C | 172-175 |
Thermal conductivity | DIN 52612-1 | W/(m*K) | 0,19 |
Thermal capacity | DIN 52612 | kJ / (kg * K) | 1,20 |
Coefficient of linear thermal expansion | DIN 53752 | 10-6K-1 | 100-140 |
Service temperature, long term | Average | °C | -20 ...140 |
Service temperature, short term (max.) | Average | °C | 150 |
Heat deflection temperature | DIN EN ISO 306, Vicat B | °C | 140 |
Electrical Properties | |||
Dielectric constant | IEC 60250 | 8,0 | |
Dielectric dissipation factor (50 Hz) | IEC 60250 | 0,02 | |
Volume resistivity | IEC 60093 | Ω *cm | >1014 |
Surface resistivity | IEC 60093 | Ω | <14 |
Comparative tracking index | IEC 60112 | 600 | |
Dielectric strength | IEC 60243 | kV/mm | 20 |
The data stated above are average values ascertained by statistical tests on a regular basis. They are in accordance with DIN EN 15860. The data above is provided purely for information and shall not be regarded as binding unless expressly agreed in a contract of sale.