Teknor Apex Monprene® MP-2840E Thermoplastic Elastomer

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Teknor Apex Monprene® MP-2840E Thermoplastic Elastomer
Categories:	Polymer; Thermoplastic; Elastomer, TPE
Material Notes:	Uses: Closures; Consumer Applications; Gaskets; Handles; Kitchenware; Medical/Healthcare Applications; Packaging; Safety Equipment; Sporting Goods; Toothbrush Handles; Tubing; Writing Instruments Forms: Pellets Processing Method: Extrusion; Injection Molding Injection Notes: Drying is not necessary. However, if moisture is a problem, dry the pellets for 2 to 4 hours at 150°F (65°C); Injection Rate: Fast Extrusion Notes: Screw Speed: 30 to 100 rpm Information Provided by Teknor Apex
Key Words:	TPE
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Physical Properties	Metric	English	Comments

Specific Gravity	0.890 g/cc	0.890 g/cc	ASTM D792
Melt Flow	0.50 g/10 min @Load 5.00 kg, Temperature 200 °C	0.50 g/10 min @Load 11.0 lb, Temperature 392 °F	ASTM D1238

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	45	45	ASTM D2240
Tensile Strength at Break	6.89 MPa	1000 psi	ASTM D412
Tensile Stress at Strain	1.38 MPa @Strain 300 %	200 psi @Strain 300 %	ASTM D412
Elongation at Break	700 %	700 %	ASTM D412
Compression Set	20 % @Temperature 22.8 °C, Time 79200 sec	20 % @Temperature 73.0 °F, Time 22.0 hour	ASTM D395B
	60 % @Temperature 70.0 °C, Time 79200 sec	60 % @Temperature 158 °F, Time 22.0 hour	ASTM D395B

Processing Properties	Metric	English	Comments
Rear Barrel Temperature	182 - 232 °C	360 - 450 °F
Middle Barrel Temperature	188 - 238 °C	370 - 460 °F
Front Barrel Temperature	193 - 243 °C	380 - 470 °F
Nozzle Temperature	199 - 249 °C	390 - 480 °F
Zone 1	182 - 232 °C	360 - 450 °F
Zone 2	188 - 238 °C	370 - 460 °F
Zone 3	193 - 243 °C	380 - 470 °F
Zone 5	199 - 249 °C	390 - 480 °F
Die Temperature	199 - 249 °C	390 - 480 °F
Melt Temperature	199 - 249 °C	390 - 480 °F	Processing Temperature
Mold Temperature	35.0 - 48.9 °C	95.0 - 120 °F
Injection Pressure	1.38 - 5.52 MPa	200 - 800 psi
Back Pressure	0.172 - 0.689 MPa	25.0 - 100 psi
Cushion	0.381 - 2.54 cm	0.150 - 1.00 in
Screw Speed	50 - 100 rpm	50 - 100 rpm

Descriptive Properties
Appearance	Clear/Transparent

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.

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PTEKNP843 / 129945

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