PVDF – Polyvinylidenfluoride
PVDF belongs to the group of fluoroplastics and is known for its good chemical qualities, as well as mechanical strength. It is a very pure material with relative good strength and friction qualities. PVDF is manufactured in sheets and bars, as well as pipes, fittings and vents.
Qualities
PVDF is resistant to the most acids and weak bases, just as it is useful in hot water and steam. Yet it is not resistant to acetone, ethyl acetate and hot sulfuric acid. PVDF will not be affected by UV-rays and is very aging resistant. Even with application under high temperatures or in hot water. It is not recommended to bond PVDF, whereas it can be welded, otherwise should mechanical joining be used.
Application
PVDF is very common within the chemical industry and other places, where there are aggressive fluids. It is used to manufacture vents, pump parts, tanks and piping.
- Fittings
- Packings
- Pump parts
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We stock PVDF in bars and sheets.
| PVDF | |
|---|---|
| Density, g/cm³ | 1,79 |
| Ball pressure hardness, N/mm² | 110 |
| Tensile strength, MPa | 50 |
| Modulus of elasticity, MPa | 2200 |
| Notch toughness, KJ/m² | 10 |
| Moisture absorption 50%RF, % | <0,05 |
| Application temperature, 0C | -30/+150 |
| Coefficient of expansion, 10-5/0C | 14 |
| Friction, µ | 0,3 |
| Acid (diluted) | + |
| Base | + |
| Solvent | + |
| UV-light | + |
+ = useful
– = non useful
