Ryton® / Techtron® / PPS (polyphenylene sulfide) products are among the most dimensionally stable thermoplastics on the market.   These products offer the broadest resistance to chemicals of any high performance plastic. They have no known solvents below 392°F, are inert to steam, are compatible with common sterilization techniques, and can be machined to tight tolerances.  These materials are also inert to strong bases, fuels and acids, making them perform well in highly corrosive and high temperature environments.  Minimal moisture absorption and a very low coefficient of linear thermal expansion along with stress-relieving processes make these PPS products ideally suited for precise-tolerance machined components. In addition, PPS products exhibit excellent electrical characteristics and are inherently flame retardant. PPS is ideally suited for plastic components in automotive, electrical, appliance and and industrial applications.  Other trade names for Polyphenylene sulfide products are Estane®, Supec®, Sustatron PPS, and Tecatron®.

CCT Precision Machining is an industry leader in Ryton® machining.  We are able to maintain tolerances, create features and produce parts that even the material manufacturers deem impossible. By using high speed spindles capable of turning at 30,000 RPM, tightly controlled work envelopes and cutting edge work holding systems, CCT Precision can machine components from the most simple part to the most intricate part on any of the 25+ machines in our facility.

  • 27” x 15” x 13” Work Envelope
  • Tolerances to +/- .00025” (0.006 mm)
  • Hole Diameters to 0.003” (0.076 mm)

If precision machining of Ryton® parts is what you are looking for, Request a Quote today.

Tectron PPS40% Glass-Filled Ryton PPS40% Glass-Filled Ryton PPS
MechanicalASTM Test MethodCompression Molded PPSCompression Molded 40% GF PPSInjection Molded R-4Units
Strength to Weight Ratio----ksi
Specific Gravity @73 FD7921.351.701.67-
Tensile Strength @73 F, (ult)/(yld)D63810,000 (ult)13,000 (ult)22,000 (ult)psi
Tensile Modulus of Elasticity @73 FD638325,000730,0002,200,000psi
Tensile Elongation at Break @73 FD6385.02.01%
Flexural Strength @73 FD79018,00023,00029,500psi
Flexural Modulus of Elasticity @73 FD790370,0001,000,0002,100,000psi
Shear Strength @73 FD732--13,000psi
Comprehensive Strength, (% Deformation) @73 FD69518,000 (10)24,000 (10)26,000 (10)psi
Comprehensive Modulus of Elasticity @73 FD695410,0001,300,000-psi
Hardness, Rockwell, Scale as noted @73 FD785M93 (R125)M94 (R125)(R123)-
Hardness, Durometer, Shore D @73 FD2240D85D86--
Izod Impact, (Notched) @73 FD256 Type A0.61.01.7ft-lb/in of notch
Coefficient of Friction, (Dry vs Steel) Dynamic-0.40---
Limiting PV, (with 4 to 1 factor of safety applied)----psi-ft/min
ThermalASTM Test MethodCompression Molded PPSCompression Molded 40% GF PPSInjection Molded R-4Units
Coefficient of Linear Thermal Expansion @73 FE-831 (TMA)2.8 E-052.5 E-05-in/in/F
Heat Deflection Temperature @264 psiD648250490500F
Tg-Glass transition termperature, (Amorphous)D3418---F
Melting Point, (VS=Vicat Softening Temp.)D3418540540-F
Continuous Service Temperature in Air, (Max.)-425450428F
Thermal Conductivity-2.002.102.10BTU-in/hr-ft2-F
ElectricASTM Test MethodCompression Molded PPSCompression Molded 40% GF PPSInjection Molded R-4Units
Dielectric Strength, Short TermD149540385450Volts/mil
Volume ResistivityD2574.5 E+16-1.0 E+16ohm-cm
Dielectric Constant @10E6 HzD1503.0-3.8-
Dissipation Factor @10E6 HzD1500.001-0.001-
Flammability @3.1 mm unless notedUL94V-0V-0V-0/5VA-
H2OASTM Test MethodCompression Molded PPSCompression Molded 40% GF PPSInjection Molded R-4Units
Water Absorption, Immersion, 24 hoursD570(7)0.010.02-% by weight
Water Absorption, SaturationD570(7)0.030.030.05% by weight