Mitsubishi Chemical Advanced Materials Ertalyte™ TX Internally Lubricated Semi-Crystalline PET

Categories:

Polymer; Thermoplastic; Polyester, TP; Polyethylene Terephthalate (PET)

Material Notes:

Ertalyte™ TX Polyethylene Terephthalate Polyester PET is an a premium internally lubricated bearing, semi-crystalline grade that exhibits superior dimensional stability, excellent wear resistance, a low coefficient of friction, high strength and rigidity, outstanding stain resistance, and great chemical and abrasion resistance.

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Physical Properties	Metric	English	Comments

Specific Gravity	1.44 g/cc	1.44 g/cc	ASTM D792
Water Absorption at Saturation	0.470 %	0.470 %	ASTM D570 (17)

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell M	94.0	94.0	ASTM D785
Hardness, Shore D	78.0	78.0	ISO 868
Tensile Strength	76.0 MPa	11000 psi	ISO 527-1/-2 (7)
Elongation at Yield	4.00 %	4.00 %	ISO 527-1/-2 (7)
Flexural Strength	122 MPa	17700 psi	ISO 178 (12)
Compressive Yield Strength	31.0 MPa @Strain 1.00 %	4500 psi @Strain 1.00 %	ISO 604 (10)
	60.0 MPa @Strain 2.00 %	8700 psi @Strain 2.00 %	ISO 604 (10)
	102 MPa @Strain 5.00 %	14800 psi @Strain 5.00 %	ISO 604 (10)
Shear Strength	59.0 MPa	8560 psi	ASTM D732
Charpy Impact, Notched	0.250 J/cm²	1.19 ft-lb/in²	ISO 179-1/1eA

Electrical Properties	Metric	English	Comments
Surface Resistivity per Square	1.00e+14 ohm	1.00e+14 ohm	ANSI/ESD STM 11.11
Dielectric Constant	3.60 @Frequency 1.00e+6 Hz	3.60 @Frequency 1.00e+6 Hz	ASTM D150
Dielectric Strength	21.0 kV/mm	533 kV/in	ASTM D149
	21.0 kV/mm	533 kV/in	IEC 60243-1 (15)
Dissipation Factor	0.0200 @Frequency 1.00e+6 Hz	0.0200 @Frequency 1.00e+6 Hz	ASTM D150

Thermal Properties	Metric	English	Comments
CTE, linear	81.0 µm/m-°C	45.0 µin/in-°F	ASTM E-831 (TMA)
	65.0 µm/m-°C @Temperature 23.0 - 60.0 °C	36.1 µin/in-°F @Temperature 73.4 - 140 °F
	85.0 µm/m-°C @Temperature 23.0 - 100 °C	47.2 µin/in-°F @Temperature 73.4 - 212 °F
Thermal Conductivity	0.274 W/m-K	1.90 BTU-in/hr-ft²-°F
	0.290 W/m-K	2.01 BTU-in/hr-ft²-°F
Melting Point	255 °C	491 °F	ASTM D3418
Maximum Service Temperature, Air	98.9 °C	210 °F	Continuous Use Temperature in Air after 20000 hr
Deflection Temperature at 1.8 MPa (264 psi)	82.2 °C	180 °F	ASTM D648
Minimum Service Temperature, Air	-20.0 °C	-4.00 °F

Chemical Resistance Properties	Metric	English	Comments
Acids, Strong (pH 1-3)	Acceptable	Acceptable
Acids, Weak	Acceptable	Acceptable
Alcohols	Acceptable	Acceptable
Alkalies, Strong (pH 11-14)	Acceptable	Acceptable
Alkalies, Weak	Acceptable	Acceptable
Chlorinated Solvents	Unacceptable	Unacceptable
Continuous Sunlight	Limited	Limited
Hot Water / Steam	Limited	Limited
Hydrocarbons - Aliphatic	Unacceptable	Unacceptable
Hydrocarbons - Aromatic	Unacceptable	Unacceptable
Inorganic Salt Solutions	Acceptable	Acceptable
Ketones, Esters	Unacceptable	Unacceptable

Descriptive Properties
ESd category	Insulative

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P1SM08 / 20079

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