PVDF — semi-crystalline fluoropolymer with excellent chemical resistance and piezoelectric properties. For chemical piping, semiconductor equipment, transducers and ultrasonic sensors.
PVDF (Polyvinylidene Fluoride) per ASTM D3222 / ISO 12086. Semi-crystalline fluoropolymer with the best mechanical properties of all standard fluoropolymers (Rm 50 MPa) combined with excellent chemical resistance (continuous service -40 to +150 C). Melt-processable by injection moulding and extrusion. Piezoelectric in oriented film form (Kynar PVDF). Standard for chemical piping, semiconductor wet process equipment and ultrasonic transducer films.
| Standard Body | Designation | Country / Region | Note |
|---|---|---|---|
| ASTM | D3222 (PVDF) | USA | |
| ISO | ISO 12086 (PVDF) | International | |
| Trade Names | Kynar (Arkema) / Solef (Solvay) / Hylar (Solvay) | Global | |
| UL | 94 V-0 (inherent) | USA | |
| FDA | 21 CFR 177.2510 (food contact) | USA | |
| Piezo Film | Kynar PVDF film: piezoelectric coefficient d31=23 pC/N | Global | Unique property |
| JUS | PL-PVDF | Yugoslavia | Polivinilidenfluorid fluoropolimer |
| Supply Forms | Pipe, rod, sheet, fitting, injection moulding compound, film (piezo) | Global |
| # | Standard Body | Designation | Country / Region | Note |
|---|---|---|---|---|
| 1 | ASTM | D3222 (PVDF) | USA | — |
| 2 | ISO | ISO 12086 (PVDF) | International | — |
| 3 | Trade Names | Kynar (Arkema) / Solef (Solvay) / Hylar (Solvay) | Global | — |
| 4 | UL | 94 V-0 (inherent) | USA | — |
| 5 | FDA | 21 CFR 177.2510 (food contact) | USA | — |
| 6 | Piezo Film | Kynar PVDF film: piezoelectric coefficient d31=23 pC/N | Global | Unique property |
| 7 | JUS | PL-PVDF | Yugoslavia | Polivinilidenfluorid fluoropolimer |
| 8 | Supply Forms | Pipe, rod, sheet, fitting, injection moulding compound, film (piezo) | Global | — |
| Element | Symbol | Min % | Max % | Typical % |
|---|---|---|---|---|
| Carbon (VDF repeat unit) | C | — | — | 37.5000 |
| Hydrogen | H | — | — | 3.1300 |
| Fluorine | F | — | — | 59.4000 |
| Water absorption (any condition) | H2O | — | 0.0400 | — |
| Condition | Code | Rm min MPa | Rm max MPa |
Re min MPa | Re max MPa |
A₅ min % |
Z % |
KV J |
HB min | HB max | HRC min | HRC max | E GPa |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Standard PVDF (injection moulded) | STD | 48 | 58 | 35 | 50 | 20.0 | — | — | — | — | — | — | 2.5 |
| PVDF GF20 | GF20 | 75 | 95 | 60 | 80 | 5.0 | — | — | — | — | — | — | 6.0 |
| Coolant | Dry or compressed air; no flood coolant |
| Chip Formation | Good chip formation; stiffer than PTFE |
| Tool Material | Carbide K10; PCD for production; HSS acceptable |
| Surface Finish | Ra 0.4-2.0 um |