Fluorosint® 500 PTFE Polytetrafluoroethylene

Fluorosint® 500 Polytetrafluoroethylene PTFE shapes possess a unique combination of stability and wear resistance, for sealing applications where tight dimensional control is required. With nine times greater resistance to deformation under load than unfilled PTFE, Fluorosint® 500 PTFE exhibits outstanding chemical and hydrolysis resistance, and excellent mechanical and tribological properties. Additionally, Fluorosint® 500 PTFE’s coefficient of linear thermal expansion approaches the expansion rate of aluminum and is 1/4 that of virgin PTFE, which often eliminates fit and clearance problems for designers.

Material Properties

Most dimensionally stable PTFE-based product

Chemical resistance parallels PTFE

Continuous use temperatures to 500° F / 260° C

Excellent mechanical and tribological properties

Lower coefficient of thermal expansion

Available Geometries

Fluorosint® 500 PTFE stock shapes encompass a range of standard sizes in the following geometries: Tubular bar, Rod, Plate

Available Colors

Fluorosint® 500 PTFE stock shapes come in the following colors: Ivory

Key Properties

Low Deformation Under Load 9X Greater Than Unfilled PTFE

No Abrasive to Mating Surface

Outstanding Dimensional Stability, Close to Aluminum

Limitations

Lower Mechanical Properties than other high performance materials

Applications

Labyrinth sacrificial, Abradable Seals - FLUOROSINT 500 has been used very successfully as a replacement for metal/aluminum seals and shrouds in compressors.

In addition to the security a sacrificial part provides the system, FLUOROSINT 500 allows the introduction of abradable sealing technology where mating parts are allowed to cut their own running clearance and thus permitting significant gains in efficiency.

Shrouds

Split and one-piece seals

Valve Seats & Seals

Typical Properties of Fluorosint ® 500