Fluoropolymer Coating Types
Comparative summary of characteristics of common fluoropolymers that Maksem uses are as follows. Prominent features of each material are underlined.
PTFE (Poly tetra-fluoro ethylene)
- Lowest coefficient of friction
- High creep resistance
- Thermo-plastically unprocessable
- High chemical resistance
- Temperature resistance from -200°C to +260°C
PFA (Perfluoroalkoxy)
- Similar characteristics like PTFE, but thermo-plastically processable
- High creep resistance
- High chemical resistance
- Temperature resistance from -200°C to +260°C
FEP (Fluorinated ethylene proplylene)
- Chemical resistance similar to PTFE
- Mechanical resistance lower than PTFE and PFA
- Temperature resistance from -200°C to +205°C
- Better non-stick properties than PFA
ETFE (Ethylene tetra-fluoro ethylene)
- Highest chemical resistance after PTFE, PFA and FEP
- Same expandability as PTFE
- Temperature resistance from -100°C to +155°C
- Highest impact strength of all plastics
- High E module
- Layer thickness up to 800µm max.
E-CTFE (Ethylene chloro tri-fluoro ethylene)
- Resistance to organic solvents, strong acids, chlorine and sodium hydroxide
- High impact strength
- Temperature resistance from -100°C to +150°C
- Nominal layer thickness 800µm, maximum layer thickness 1500µm