Kolon KOPEL® KP3768EX Thermoplastic Polyester Elastomer

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Kolon KOPEL® KP3768EX Thermoplastic Polyester Elastomer
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Polyester TPE
Material Notes:	Extrusion Molding, TPC-ET Flexibility and elastic recovery are similar to rubber, but the mechanical properties, heat resistance, weather resistance and UV stability are far better than the performance of conventional rubber. Information provided by Kolon Plastic, Inc.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.25 g/cc	1.25 g/cc	ISO 1183
Water Absorption	0.20 % @Time 86400 sec	0.20 % @Time 24.0 hour	ISO 62
Linear Mold Shrinkage	0.015 - 0.019 cm/cm	0.015 - 0.019 in/in	ISO 294-4
Melt Flow	18 g/10 min @Load 2.16 kg, Temperature 230 °C	18 g/10 min @Load 4.76 lb, Temperature 446 °F	ISO 1133

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	<= 68	<= 68	ISO 868
Tensile Strength at Break	52.0 MPa @Thickness 2.00 mm	7540 psi @Thickness 0.0787 in	50 mm/min; ISO 527
Elongation at Break	600 % @Thickness 2.00 mm	600 % @Thickness 0.0787 in	50 mm/min; ISO 527
Flexural Modulus	0.650 GPa @Thickness 4.00 mm	94.3 ksi @Thickness 0.157 in	10 mm/min; ISO 178
Izod Impact, Notched	0.0500 J/cm @Thickness 4.00 mm, Temperature -40.0 °C	0.0937 ft-lb/in @Thickness 0.157 in, Temperature -40.0 °F
	0.200 J/cm @Thickness 4.00 mm, Temperature 23.0 °C	0.375 ft-lb/in @Thickness 0.157 in, Temperature 73.4 °F

Thermal Properties	Metric	English	Comments
Melting Point	217 °C	423 °F	20 ?/min; ISO 11357-1
Vicat Softening Point	205 °C @Load 1.02 kg	401 °F @Load 2.25 lb	50°C/h; ISO 306
Flammability, UL94	HB @Thickness 0.800 mm	HB @Thickness 0.0315 in

Processing Properties	Metric	English	Comments
Rear Barrel Temperature	190 - 210 °C	374 - 410 °F
Middle Barrel Temperature	210 - 230 °C	410 - 446 °F
Front Barrel Temperature	220 - 240 °C	428 - 464 °F
Nozzle Temperature	220 - 240 °C	428 - 464 °F
Mold Temperature	20.0 - 40.0 °C	68.0 - 104 °F
Drying Temperature	80.0 - 110 °C @Time 10800 - 21600 sec	176 - 230 °F @Time 3.00 - 6.00 hour	Dehumidifying Dryer
Moisture Content	<= 0.080 %	<= 0.080 %

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

PKOKZ784 / 255795

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