3 mm TFM or PTFE lined Mild steel agitator used in a 50 KL reaction vessel used by a surfactant industry based in Egypt.
M-PTFE lined agitator has been a replacement to Duplex steel. All critical parts on the agitator are appropriately lined with PTFE.
PTFE has been made wieldable by years of research by various companies. It is a boon to the chemical industry which faces extreme corrosion.
Appropriate mask & gear has to be used by welders doing PTFE welding as fluorine fumes are emitted during welding.