1. Corrosion resistance: Polytetrafluoroethylene sheet has very good corrosion resistance and good resistance to most chemicals. It can be used in a wide range of acids, alkalis and solvents without corrosion and damage.

2. High temperature resistance: PTFE sheet can work at high temperatures, and its temperature resistance range can reach -200 degree to +260 degree . This makes it an ideal material for various applications in high temperature environments.

3. Non-stickiness: Polytetrafluoroethylene sheet has extremely low surface energy, making it a very low friction coefficient. This means that it has excellent non-stickiness and self-lubricating properties, which can reduce the adhesion of the material surface, giving it unique application advantages in many fields.

4. Electrical insulation: PTFE sheet is a good electrical insulation material with good dielectric properties. It can work at high voltage and high frequency, and is not prone to arcing, so it is widely used in electronics, electrical and communications.

5. Mechanical properties: PTFE sheet has excellent mechanical properties such as high strength, hardness and rigidity. It has good tensile strength and wear resistance and can be used for a long time in various harsh environments.

6. Food grade safety: PTFE sheet is a non-toxic and odorless material that meets food grade safety standards. Therefore, it is widely used in food processing and manufacturing industries, such as food containers, baking trays and baking materials.

In short, PTFE sheet has the advantages of corrosion resistance, high temperature resistance, non-stickiness, electrical insulation, mechanical strength and food grade safety, which makes it widely used in chemical, electronic, food, sanitation and manufacturing fields.