Overview of Fluoropolymers, quartz and PEEK
PTFE
- Polytetrafluoroethylene
- Perfluorinated plastic
- Melting temperature approx. 330°C
- Application temperature up to + 260°C
- Almost universal chemical resistance
- High purity
TFM™-PTFE
- Perfluorinated plastic with perfluoroalkoxy side chain (<1 wt%)
- Melting temperature approx. 330°C
- Application temperature up to + 260°C
- Almost universal chemical resistance
- High purity
- Improved surface structure compared to PTFE
PFA
- Perfluorinated plastic with perfluoroalkoxy side chain (4-10 wt%)
- Melting temperature approx. 290°C
- Application temperature up to + 220°C
- Almost universal chemical resistance
- High purity levels
- Improved surface structure compared to PTFE
- Lower strength than PTFE and TFM™-PTFE
Quartz
- Melting temperature above 1100°C
- Application temperature in digestions up to 300°C
- Not resistant to hydrofluoric acid
- High purity levels
PEEK
- Polyetheretherketone
- Thermoplastic material that belongs to the group of polyaryletherketones
- Melting temperature approx. 335°C
- brown-grey-yellow color
- Resistant to most organic and inorganic chemicals up to 280°C
- Unstable in the presence of nitric acid and oxidizing conditions
- Very good solubility in sulfuric acid at room temperature