PTFE – Polytetrafluoroethylene

Trade names: TEFLON…

Polytetrafluoroethylene -PTFE is a semi-crystalline fluoropolymer with an unusually high chemical and thermal resistance (-200 to +260°C, temporarily up to 300°C). In addition, this thermoplastic material has excellent sliding properties, a non-stick surface and the best insulating properties. This is in contrast, however, to low mechanical strength and a high specific gravity, compared to other plastics. In order to improve the mechanical properties, PTFE can be used as a compound reinforced with additives such as glass fibre, carbon or bronze.

Types:

• PTFE
• PTFE + GRAPHITE
• PTFE + GLASS FIBRE
• PTFE + CARBON
• PTFE +BRONZE

Properties:

• extremely high chemical resistance
• very good temperature resistance (-200 to +260°C, temporarily up to 300°C)
• very low coefficient of friction
• extremely low surface tension
• high coefficient of thermal expansion
• relatively low strength/rigidity
• low dielectric constant
• non-combustible

Applications: Gaskets, pumps, rotation discs, valves, glide tracks…

Shapes of semi-finished products: round rods,  tubes, sheets

Color: natural, black .

Dimensions of semi-finished products:

• Round rods fi 3mm - fi 200mm  (natural)
• Sheets thickness 0,5mm - 60mm