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Techtron (PPS/HPV)

Techtron manufacturers

Techtron PPS is an internally lubricated polyphenylene sulphide grade which demonstrates an excellent combination of properties, making it ideal for applications where PA, POM, PET, PEI and PSU fall short, or where PBI, PI, PEEK and PAI are over-engineered and a more economical solution are required.

All Techtron PPS products offer dimensional stability and strength at moderate temperatures. They are rated for continuous service to 220°C (425°F), but strength and stiffness vary based on temperature and grade. Unreinforced Techtron PPS is generally not recommended for wear applications. Products like Duratron PAI or Ketron PEEK are better selections for high temperature wear applications. When designing with compression molded grades, it is important to note its relatively low elongation and impact strength.

Techtron HPV exhibits excellent wear resistance and a low coefficient of friction. It overcomes the disadvantages of virgin PPS caused by a high coefficient of friction, and of glass fiber reinforced PPS which can cause premature wear of the counter face in moving-part applications.


General Properties :
ASTM or UL test Property Techtron® PPS
unfilled (extruded)		 Techtron® PSGF 40% glass filled
(compression molded)
Physical Properties
D792 Density (lb/in3)(g/cm3) 0.049
1.35		 0.061
1.70
D570 Water Absorption, 24 hrs (%) 0.01 0.02
D570 Water Absorption, saturation (%) 0.03 0.03
Mechanical Properties
D638 Tensile Strength (psi) 13,500 5,000
D638 Tensile Strength (psi) 500,000 730,000
D638 Tensile Elongation at Break (%) 15 1
D790 Flexural Strength (psi) 575,000 1,000,000
D695 Compressive Strength (psi) 21,500 24,000
D695 Compressive Strength (psi) 430,000 1,300,000
D695 Compressive Strength (psi) 430,000 1,300,000
D785 Hardness, Rockwell M95 / R125 M94 / R125
D256 IZOD Impact Notched (ft-lb/in) 0.6 1.0
Thermal Properties
D696 Coefficient of Linear Thermal
Expansion (x 10-5 in./in./°F)		 2.8 2.5
D648 Heat Deflection Temp (°F / °C) at 264 psi 250 / 121 490 / 254
D648 Heat Deflection Temp (°F / °C) at 264 psi 250 / 121 490 / 254
D3418 Melting Point Temp (°F / °C) 540 / 282 540 / 282
– Max Operating Temp (°F / °C) 425 / 218 450 / 232
C177 Thermal Conductivity (BTU-in/ft²-hr-°F) (x 10-4 cal/cm-sec-°C) 2.00
6.89		 2.10
7.23
UL94 Flammability Rating V-0 V-0
Electrical Properties
D149 Dielectric Strength (V/mil) short time,
1/8″ thick		 540 385
D149 Dielectric Strength (V/mil) short time,
1/8″ thick		 540 385
D150 Dielectric Constant at 1 MHz 3.0 -
D150 Dielectric Factor at 1 MHz 0.0013 -
D257 Volume Resistivity (ohm-cm) at 50%
RH 		> 1013 > 1013

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