Material Information

PPS (PolyPhenylene Sulfide) is a semi-crystalline engineering thermoplastic. It offers the broadest resistance to chemicals of any advanced engineering plastic. There are no known solvents that effect PPS under 392º F, and it is inert to steam, strong bases, fuels, and acids. It is ideal for precise tolerance machined components because it has minimal water absorption, has a very low coefficient of linear thermal expansion, and is stress relieving manufactured. PPS is also a great option for structural applications, corrosive environments, and a lower temperature replacement for PEEK. At moderate temperatures PPS offers great dimensional stability and strength.

The 40% glass reinforced grade of Quadrant PPS is the most recognized PPS. It is compression molded and offers better dimensional stability and thermal performance than the Techtron® PPS unfilled grade. It maintains its strength to above 425º F.


  • Lantern rings
  • Aerospace applications
  • Pump housings
  • High-pressure liquid chromatography components
  • Water retaining rings
  • Hydrocarbon pump, valve, and compressor components
  • Oil field parts
  • Medical and diagnostic device parts
  • Electronic test sockets and fixtures
  • Flow meter rotors
  • Engine sensors
  • Halogen lamp sockets


  • Broadest resistance to chemicals of all advanced engineering plastics
  • Improved dimensional stability and thermal performance over Techtron® PPS
  • Maintains strength above 425º F
  • Inert to steam, strong bases, fuels, and acids
  • Minimal water absorption
  • Excellent electrical insulator
  • Very low coefficient of linear thermal expansion


Astm Test Method

PPS 40% Glass Filled

Density (lb/in^3) D792 0.061
Specific Gravity D792 1.7
Water Absorption @ 24 hours (%) D570 0.02


Tensile Strength (PSI) D638 13,000
Tensile Modulus (PSI) D638 730,000
Tensile Elongation at Break (%) D638 2
Flexural Strength (PSI) D790 23,000
Flexural Modulus (PSI) D790 1,000,000
Compressive Strength (PSI) D695 24,000
Compressive Modulus (PSI) D695 1,300,000
Izod Impact (Notched), ft-lb/in D256 M94, R125
Rockwell Hardness D785 1


Coefficient of Thermal Expansion,
D696 2.5
Heat Deflection Temperature 264 psi, ºF D648 490
Glass Transition Temp, ºF D3418 NA
Continous Service Temp (Operating), °F  – 450
Thermal Conductivity, BTU-in/hr-ft² °F C177 2.1
Flammability Rating UL94 VO


Dielectric Strength, Short Term,
(Volts/Mil) @ .125″ Thick
D149 385
Volume Resistivity (ohm-cm) @ 50% RH D257
Dielectric Constant at 1 MHz D150
Dissipation Factor at 1 MHz D150


The information contained herein 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.