Teknor Apex Monprene® WR-12232 Thermoplastic Elastomer

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Teknor Apex Monprene® WR-12232 Thermoplastic Elastomer
Categories:	Polymer; Thermoplastic; Elastomer, TPE
Material Notes:	Notes: Monprene WR-12231 is a specialty high performance thermoplastic elastomer designed for a variety of consumer application, including writing instrument grips requiring a soft, rubber-like feel. Monprene WR-12231 is a lubricated, low medium hardness, low density grade containing an antimicrobial additive. This grade is suitable for injection molding and extrusion. Availability: Africa & Middle East; Asia Pacific; Europe; Latin America; North America Additive:Antimicrobial (Fungicide) Features: Bacteria Resistant; Fungus Resistant; Medium Flow; Low Density; Low Hardness; Low Specific Gravity; Lubricated; Slip; Without Fillers Uses: Consumer Applications; Flexible Grips; Handles; Sporting Goods; Writing Instruments RoHS Compliance: RoHS Compliant Form: Pellets Processing Method: Injection Molding; Extrusion Information provided by Teknor Apex
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Physical Properties	Metric	English	Comments

Density	0.890 g/cc	0.0322 lb/in³	ASTM D792
Melt Flow	15 g/10 min @Load 5.00 kg, Temperature 200 °C	15 g/10 min @Load 11.0 lb, Temperature 392 °F	ASTM D1238

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	32 @Time 5.00 sec	32 @Time 0.00139 hour	Injection Molded; ASTM D2240
	35 @Time 1.00 sec	35 @Time 0.000278 hour	Injection Molded; ASTM D2240
Tensile Strength at Break	2.55 MPa	370 psi	Die C, 20 in/min, Flow; ASTM D412
	7.17 MPa	1040 psi	Die C, 20 in/min, Across Flow; ASTM D412
Tensile Stress at Strain	0.317 MPa @Strain 100 %	46.0 psi @Strain 100 %	Die C, 20 in/min, Across Flow; ASTM D412
	0.614 MPa @Strain 300 %	89.0 psi @Strain 300 %	Die C, 20 in/min, Across Flow; ASTM D412
	0.869 MPa @Strain 100 %	126 psi @Strain 100 %	Die C, 20 in/min, Flow; ASTM D412
	1.34 MPa @Strain 300 %	195 psi @Strain 300 %	Die C, 20 in/min, Flow; ASTM D412
Elongation at Break	690 %	690 %	Die C, 20 in/min, Flow; ASTM D412
	2000 %	2000 %	Die C, 20 in/min, Across Flow; ASTM D412
Tear Strength	13.8 kN/m	79.0 pli	Die C, 20 in/min, Flow; ASTM D624
	16.8 kN/m	96.0 pli	Die C, 20 in/min, Across Flow; ASTM D624
Compression Set	14 % @Temperature 22.8 °C, Time 79200 sec	14 % @Temperature 73.0 °F, Time 22.0 hour	Type 1; ASTM D395B
	44 % @Temperature 70.0 °C, Time 79200 sec	44 % @Temperature 158 °F, Time 22.0 hour	Type 1; ASTM D395B

Processing Properties	Metric	English	Comments
Processing Temperature	199 - 249 °C	390 - 480 °F	Melt, Injection
Rear Barrel Temperature	182 - 232 °C	360 - 450 °F	Injection
Middle Barrel Temperature	188 - 238 °C	370 - 460 °F	Injection
Front Barrel Temperature	193 - 243 °C	380 - 470 °F	Injection
Nozzle Temperature	199 - 249 °C	390 - 480 °F	Injection
Zone 1	182 - 232 °C	360 - 450 °F	Extrusion
Zone 2	188 - 238 °C	370 - 460 °F	Extrusion
Zone 3	193 - 243 °C	380 - 470 °F	Extrusion
Zone 4	199 - 249 °C	390 - 480 °F	Extrusion
Zone 5	199 - 249 °C	390 - 480 °F	Extrusion
Die Temperature	199 - 249 °C	390 - 480 °F	Extrusion
Mold Temperature	35.0 - 48.9 °C	95.0 - 120 °F	Injection
Injection Pressure	1.38 - 5.52 MPa	200 - 800 psi	Injection
Back Pressure	0.172 - 0.689 MPa	25.0 - 100 psi	Injection
Cushion	0.381 - 2.54 cm	0.150 - 1.00 in	Injection
Screw Speed	30 - 100 rpm	30 - 100 rpm	Extrusion
	50 - 100 rpm	50 - 100 rpm	Injection

Descriptive Properties
Appearance	Natural Color

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