Fluorosint® 500 Enhanced PTFE offers an ideal combination of stability and wear resistance for sealing applications where tight dimensional control is required. Fluorosint® 500 also greatly reduces the risk of catastrophic system failure by becoming a sacrificial wear surface. With a deformation under load 9 times lower than virgin PTFE, Fluorosint® 500 allows designers to greatly improve the efficiency of systems without sacrificing the wear resistance and forgiving benefits of PTFE.
Fluorosint® 500 PTFE has nine times greater resistance to deformation under load than unfilled PTFE. Its coefficient of linear thermal expansion approaches the expansion rate of aluminum, and is 1/5 that of virgin PTFE, often eliminating fit and clearance problems. It is 1/3 harder than virgin PTFE, has better wear characteristics and maintains low frictional properties. Fluorosint® 500 PTFE is also non-abrasive to most mating materials.
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Water Absorption, 24 hrs
Tensile Elongation @Break
IZOD Impact Strength Notched
Coeffcient of Linear Thermal Expansion
x 10^-5 in./in./°F
Heat Deflection Temp at 264 psi
Max Operating Temp.
Dielectric Strength. 1/8″ th.
Dielectric Constant @1 MHz
Dissipation Factor@1 MHz
Surface Resistivity @60 Hz
NOTE: The property values presented above are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers’ complete material property datasheets. All values at 73°F (23°C) unless otherwise noted.
Split and one piece seals
Low coefficient of thermal expansion
High load capability
Superior deformation under load
Continuous use temperatures to 500F
Chemical resistance parallels PTFE
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