PTFE packing are highly resistant to strong chemicals such as solvents, bases and acids. They can work efficiently for applications with media such as concentrated sulphuric acid, nitric acid, etc. You can also save on power consumption with the low friction characteristic of the PTFE material.

Polytetrafluoroethylene (PTFE) is a synthetic fluoropolymer of tetrafluoroethylene. Being hydrophobic, non-wetting, high density and resistant to high temperatures, PTFE is an incredibly versatile material with a wide variety of applications, though it's perhaps best-known for its non-stick properties.