Polyphenylene sulfide (PPS) offers the best chemical resistance with no known solvents below 392°F (200°C). it's low moisture absorption, good mechanical and excellent thermal resistance properties make PPS ideally suited for precise tolerance machined components.
Polyphenylene sulfide (PPS) is a semi-crystalline engineering thermoplastic. It is suitable for applications requiring thermal stability to 425° and structural integrity to 225°. A very low coefficient of linear thermal expansion, combined with stress-relieved manufacturing, make unfilled PPS ideally suited for precise-tolerance machined components. PPS is well suited for structural applications in corrosive environments or as a lower-temperature replacement for PEEK. Its low ionic impurities make it an excellent choice for applications where high purity is a concern.
Additional PPS grades are available, i.e., glass filled, glass/mineral filled, internally lubricated, and formulations within these grades which offer low friction, high limiting PVs, bearing strength, wear resistance, heat stability, increased impact strength and static control properties are available to meet various requirement levels. Contact an Emco Industrial Plastics representative who can help you choose the correct material to meet specific application demands.
Hydlar® G (PPS/Kevlar® alloy)
Emco Industrial Plastics doesn’t claim to represent all of the manufacturers or trade name products listed. This list is intended as a guide of typical materials available for purchase from Emco Industrial Plastics, Inc. For additional information, contact an Emco Industrial Plastics representative with the form below.
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Water Absorption, 24 hrs
Tensile Elongation @Break
Hardness, Rockwell R
IZOD Impact Strength Notched
Coefficient of Linear Thermal Expansion
(x 10^-5 in./in./°F)
Heat Deflection Temp at 264 psi
Max Operating Temp
V – O
540 @1/8″ th.
Dielectric Constant @ 1 MHzD150
Dissipation Factor @ 1 MHz
Volume Resistivity, 50% RH
4.5 x 10^16
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.
Retainer rings in CMP machines
Semiconductor machine components
Pump, valve, seal components
High chemical resistance
High temperature applications
Excellent dimensional stability
Essentially zero moisture absorption
Machines to tight tolerances
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