Polyvinylidenfluoride
High-molecular, semi-crystalline thermoplastic with its own white colour.
It has similar properties as PTFE. Excellent chemical resistance, wide range of operating temperatures (– 50ºC / + 150ºC ) and it is not susceptible to ageing because of weathering. Furthermore, it has excellent strength, toughness, creep and high-energy radiation resistance and it significantly outperforms all other fluorinated polymers. Conversely, it has a lower friction coefficient and worse insulating properties.
We process the materials using the following procedures:
Extrusion: Extruded profiles according to drawings and semi-products according to DIN
Machine parts: Turned and milled parts in single and serial production
Pressings: Injected moulded parts weighing up to 16.000 g
Density: ISO 1183 1.78 g/cm3
| Mechanical properties | ||
| Tensile strength at yield | ISO 527 | 59 MPa |
| Tensile strength | ISO 527 | 40 MPa |
| Elongation | ISO 527 | 20 % |
| E-Modulus of tensile elasticity | ISO 527 | 2500 MPa |
| Brinell Hardness | ISO 2039-1 | 95 MPa |
| Brinell Hardness Number | H358/30 | |
| Shore (A/D) or Rockwell (R/L/M) Hardness | ISO 868, ISO 2039-2 | D78 |
| Charpy notched impact strength at 23 °C | ISO 179/1eA | 7.6 KJ/m2 |
| Electrical properties | ||
| Permittivity at 50 Hz | IEC 60250 | 8.4 |
| Permittivity at 1 MHz | IEC 60250 | 6.4 |
| Dielectric loss factor at 50 Hz | IEC 60250 | 490 1E-4 |
| Dielectric loss factor at 1 MHz | IEC 60250 | 1700 1E-4 |
| Dielectric strength | IEC 60243-1 | 40 kV/mm |
| Thickness for dielectric strength | 1.0 mm | |
| Specific dielectric resistance | IEC 60093 | 1014 Ω·m |
| Surface resistance | IEC 60093 | 1014 Ω |
| Thermal properties | ||
| Thermal conductivity | DIN 52 612 | 0.19 W/Km |
| Coefficient of transverse expansion, linear | ISO 11359 130 | 10-6/K |
| Melt or vitrification temperature ISO 11357 | 175 °C | |
| Heat distortion resistance A | ISO 75 HDT/A (1.8 MPa) | 115 °C |
| Heat distortion resistance B | ISO 75 HDT/B (0.45 MPa) | 148 °C |
| Max. short-term temperature | 160 °C | |
| Max. long-term temperature | 150 °C | |
| Min. operating temperature | -30 °C | |
| Other properties | ||
| Water absorption under regular conditions | ISO 62 | 0.01 % |
| Water absorption in humidity | ISO 62 | 0.04 % |
| Burning behaviour according to UL 94 | IEC 60695-11-10 | V-0 |
| UL 94 Thickness | 1.6 mm | |
| Special properties | ||
| Proportional elongation at yield | ISO 527 | 7 % |
| Tensile creep modulus (0.5% 1000 hrs) | ISO 899-1 | 1750 MPa |
| Flexural strength | ISO 178 | 78 MPa |
| Fatigue in flexure | ASTM D671 | 35 MPa |
| Charpy impact strength at 23 °C | ISO 179/1eU | 89.4 KJ/m2 |
| Charpy impact strength at -30 °C | ISO 179/1eU | 97.6 KJ/m2 |
| Charpy notched impact strength at -30 °C | ISO 179/1eA | 2.3 KJ/m2 |
| Izod notched impact strength at 23 °C | ISO 180/4A | 65 J/m |
| Coefficient of slip creep compared to steel | 0.20-0.35 | |
| Specific heat capacity | IEC 1006 | 1.20 J/g K |
| Vicat softening point A | ISO 306 VST/A/50 (10 N) | 168 °C |
| Vicat softening point B | ISO 306 VST/B/50 (50 N) | 150 °C |
| LOI Acid index | ISO 4589 | 44 % |
Chemical properties
| Mineral lubricants: | resistant |
| Aliphatic hydrocarbons: | resistant |
| Aromatic hydrocarbons: | resistant |
| Gasolines: | resistant |
| Weak mineral acids: | resistant |
| Weak mineral acids: | resistant |
| Weak organic acids: | resistant |
| Strong organic acids: | resistant |
| Oxid. acids: | conditionally resistant |
| Weak alkalis: | resistant |
| Strong alkalis: | not resistant |
| Trichlorethylene: | resistant |
| Perchlorethylene: | resistant |
| Acetone: | not resistant |
| Alcohols: | resistant |
| Hot water: | (hydrolysis) resistant |
| Effects of atmospheric conditions: | resistant |
