What is the difference between FEP and PTFE?


What is the difference between FEP and PTFE?
PTFE and FEP are similar in their material properties. The main difference between PTFE and FEP lies in the maximum operating temperature and the colour. PTFE is milky/white and FEP is clear transparent.

1. FEP, F46 (fluorinated ethylene propylene copolymer) non-stick coatings melt and flow during baking to form a non-porous film, with excellent chemical stability and non-stick properties, maximum use temperature of 200 °C, melting point of 270 °C, injection molding, extrusion molding

2. The non-stick coating PTFE (polytetrafluoroethylene) can be used continuously at 260°C, with a maximum operating temperature of 290-320°C, and has an extremely low friction coefficient, good wear resistance, and excellent chemical stability. It can’t be injected, but it can be extruded or coated.

As a result, PTFE is far more practical than FEP. The reason is simple: PTFE has better temperature resistance, anti-corrosion performance, and anti-stick performance than FEP due to its properties. However, due to cost considerations, FEP material is a good choice if the requirements aren’t too stringent and only require friction resistance.