Polytetrafluoroethylene

PTFE

General Temperature Range: -100° to +500° F

Advantages:

• Wide temperature range
• Resistant to all fluids
• Low friction
• No swell
• Dry running

Disadvantages:

• Relative high cost
• Stiff at low temperature
• Non-elastic - poor dynamic response
• Damaged easily
• Installation can be difficult

PTFE, considered one of the most slippery materials in existence, is inert to virtually all chemicals, is dimensionally and physically stable to fairly high temperatures (350°F), and can be molded, stamped, machined, sprayed, painted, and extruded. These properties have made it one of the most valuable and versatile technologies ever invented. As the DuPont registered trademark Teflon®, it has become a familiar household name, recognized worldwide for the superior non-stick properties associated with its use as a coating on cookware and as a soil and stain repellant for fabrics and textile products.