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Ertalyte® PET-P
(PolyEthylene Terephthalate Polyester)
Specifications

904 West 6th Street, Shiner, Texas 77984 USA
Phone: 1-361-594-2941     Fax: 1-361-594-2349     E-Mail: info@boedeker.com

1-800-444-3485

BPI Home Page | Applications | Materials Guide | Contact Us!

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TECHNICAL DESCRIPTION
Ertalyte PET-P Material (c) Boedeker Plastics 2008 Ertalyte ® is an unreinforced semi-crystalline thermoplastic polyester based on polyethylene teraphalate (PET-P).

GENERAL PROPERTIES
Ertalyte ® 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

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TYPICAL PROPERTIES of ERTALYTE

ASTM or UL test Property Ertalyte ®
unfilled
Ertalyte ® TX
lubricated
PHYSICAL
D792 Density (lb/in³)
(g/cm³)
0.051
1.41
0.052
1.44
D570 Water Absorption, 24 hrs (%) 0.07 0.06
MECHANICAL
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
THERMAL
D696 Coefficient of Linear Thermal Expansion
(x 10-5 in./in./°F)
3.30 4.50
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
C177 Thermal Conductivity
(BTU-in/ft²-hr-°F)
(x 10-4 cal/cm-sec-°C)

2.0
6.9

1.9
6.6
UL94 Flammability Rating HB HB
ELECTRICAL
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.
All values at 73°F (23°C) unless otherwise noted.
ERTALYTE is a registered trademark of Quadrant Polymer Corporation.
DELRIN is a registered trademark of DuPont.

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Boedeker Plastics, Inc.
904 West 6th Street, Shiner, Texas 77984 USA
USA TOLLFREE : 1-800-444-3485
Phone: 1-361-594-2941     Fax: 1-361-594-2349     E-Mail: info@boedeker.com

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