PVDF (Kynar)
Polyvinylidene Fluoride — the melt-processable fluoropolymer. Bridges the gap between PTFE (non-melt-processable) and conventional plastics. Excellent chemical resistance to acids, solvents, and hydrocarbons. Uniquely piezoelectric among polymers. Much stronger than PTFE (UTS 50 vs 25 MPa). Trade names include Kynar (Arkema), Solef/Hylar (Solvay), KF (Kureha). Used for chemical piping/valves/tanks, lithium-ion battery binder, semiconductor wet bench, architectural coatings (Kynar 500), and piezoelectric sensors.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| ISO | INT | PVDF | — | REF | |
| 🇺🇸 | ASTM | USA | ASTM D3222 | — | 100% |
| 🇫🇷 | TRADE | France | Kynar (Arkema) | — | 95% |
| TRADE | BE | Solef / Hylar (Solvay) | — | 95% |
Sources: ISO 10350, ASTM D3222, Arkema TDS, Solvay TDS
Mechanical properties
Compatibility verdict
PVDF (Kynar) and Kynar (Arkema): 95% composition match
Related materials
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