TECHNICAL DESCRIPTIONErtalyte ® is an unreinforced semi-crystalline thermoplastic polyester based on polyethylene teraphalate (PET-P).
GENERAL PROPERTIESErtalyte ® PET-P offers dimensional stability coupled with excellent wear resistance, low coefficient of friction, high strength, and resistance to moderate acid solutions. Ertalyte's properties make it especially suitable for the manufacture of precision mechanical parts which are capable of sustaining high loads and enduring wear conditions.
Ertalyte ® has a continuous service temperature of 210°F (100°C) and its melting point is almost 150°F higher than acetals.
Ertalyte ® is FDA compliant in both NATURAL and BLACK colors. Natural Ertalyte ® is also USDA, 3A-Dairy and Canada AG compliant. It is an excellent candidate for parts used in the food processing and equipment industries.
Ertalyte ® TX is an internally lubricated version of PET-P, providing enhanced wear and inertness over general purpose nylons or acetals. Containing uniformly dispersed solid lubricant, Ertalyte ® TX provides a lower wear rate and coefficient of friction than unmodified PET or PBT and even internally lubricated materials such as Delrin® AF. Ertalyte ® TX is LIGHT GREY in color.
KEY PROPERTIES Good for both wet and dry environments High strength and rigidity Excellent stain resistance Good wear resistance Excellent dimensional stability Better acid resistance than nylon or acetal
TYPICAL APPLICATIONS Food processing equipment components Process and test equipment manifolds Carousels Filter tracks Rings, disks, rollers Fuel pump components Fuel system connectors and rotors
TYPICAL PROPERTIES of ERTALYTE
|ASTM or UL test||Property||Ertalyte ®
|Ertalyte ® TX
|D570||Water Absorption, 24 hrs (%)||0.07||0.06|
|D638||Tensile Strength (psi)||12,400||11,000|
|D638||Tensile Modulus (psi)||460,000||500,000|
|D638||Tensile Elongation at Break (%)||20||5|
|D790||Flexural Strength (psi)||18,000||16,000|
|D790||Flexural Modulus (psi)||490,000||460,000|
|D695||Compressive Strength (psi)||15,000||15,250|
|D695||Compressive Modulus (psi)||420,000||400,000|
|D785||Hardness, Rockwell||M93 / R125||M94|
|D256||IZOD Notched Impact (ft-lb/in)||0.5||0.4|
|D696||Coefficient of Linear Thermal Expansion
(x 10-5 in./in./°F)
|D648||Heat Deflection Temp (°F / °C)
at 264 psi
240 / 116
180 / 82
|D3418||Melting Temperature (°F / °C)||491 / 255||491 / 255|
|-||Max Operating Temp (°F / °C)||210 / 99||210 / 99|
(x 10-4 cal/cm-sec-°C)
|D149||Dielectric Strength (V/mil) short time, 1/8" thick||385||-|
|D150||Dielectric Constant at 60 Hz||3.4||-|
|D150||Dissipation Factor at 60 Hz||-||-|
|D257||Volume Resistivity (ohm-cm)at 50% RH||> 1013||> 1013|
NOTE: 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.ERTALYTE is a registered trademark of Quadrant Polymer Corporation.
All values at 73°F (23°C) unless otherwise noted.