Techtron (PPS/HPV)

Techtron (PPS/HPV)

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) 21,000 23,000
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

Member Testimonials

ONGC – Oil and Natural Gas Corporation Limited

"ONGC - Oil and Natural Gas Corporation Limited" - Our complex drilling application where Shaft was eccentric and application was robust & muddy. Replacement was never easy. Mech Spares designed Oil seals resolved difficulty. This gave a complete joy to my maintenance team.
2014-06-08T07:48:57+00:00
“ONGC – Oil and Natural Gas Corporation Limited” – Our complex drilling application where Shaft was eccentric and application was robust & muddy. Replacement was never easy. Mech Spares designed Oil seals resolved difficulty. This gave a complete joy to my maintenance team.

Kuwait National Petroleum Company

"Mr Mohammed Al Duaigy" of (Kuwait National Petroleum Company) : We tried several diaphragms from renown worldwide Rubber manufacturing companies. We found Mech Spares technical know how and product to be of great durability and lasted 3 times more then anticipated. They have accurate understanding of there products.
2014-06-08T07:49:23+00:00
“Mr Mohammed Al Duaigy” of (Kuwait National Petroleum Company) : We tried several diaphragms from renown worldwide Rubber manufacturing companies. We found Mech Spares technical know how and product to be of great durability and lasted 3 times more then anticipated. They have accurate understanding of there products.

McCafferty BM Design Ltd, KENT United Kingdom

"McCafferty BM Design Ltd, KENT United Kingdom" - Most of the O rings manufacturing company suggested to use larger diameter and expensive elastomers. We learnt with Mech Spares that elastomer being weaker compare to metal and alloys and needs appropriate back up for high pressure or high vacuum applications. Further not necessary the most expensive elastomer is the best for all applications. We trust Mr Nilesh chodhari completely for all our O rings designing applications.
2014-06-08T07:50:26+00:00
“McCafferty BM Design Ltd, KENT United Kingdom” – Most of the O rings manufacturing company suggested to use larger diameter and expensive elastomers. We learnt with Mech Spares that elastomer being weaker compare to metal and alloys and needs appropriate back up for high pressure or high vacuum applications. Further not necessary the most expensive View Full →

Bhabha Atomic Research Centre ( BARC )

"Dr. A. Singh" of BARC: The electric Insulation mat manufactured by MECH SPARES as per IS 15624 tested at ERTL and found to withstand 40 Kv and still didn't tear. We have been using since 5 years and still didn't generate any fatigue. They arranged bulk delivery in short period.
2014-06-08T07:16:20+00:00
“Dr. A. Singh” of BARC: The electric Insulation mat manufactured by MECH SPARES as per IS 15624 tested at ERTL and found to withstand 40 Kv and still didn’t tear. We have been using since 5 years and still didn’t generate any fatigue. They arranged bulk delivery in short period.

Tata Steel

"Tata Steel" - One of our old machines started making loud noise and disturbed the entire village. We were compelled to stop the machines which lead to huge production loss. With the help of Mech Spares designed bellows in two part we could retain the lubrication and eliminate the noise.
2014-06-08T07:17:16+00:00
“Tata Steel” – One of our old machines started making loud noise and disturbed the entire village. We were compelled to stop the machines which lead to huge production loss. With the help of Mech Spares designed bellows in two part we could retain the lubrication and eliminate the noise.
View O Ring Reference Chart