Teknor Apex Monprene® WR-12250 CLR Thermoplastic Elastomer

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Teknor Apex Monprene® WR-12250 CLR Thermoplastic Elastomer
Categories:	Polymer; Thermoplastic; Elastomer, TPE
Material Notes:	Notes: Monprene WR-12250 is a high performance clear thermoplastic elastomer designed for a variety of consumer application, including writing instrument requiring a soft, rubber-like feel. Monprene WR-12250 is a medium hardness, low density, lubricated, non-filled grade that exhibits excellent adhesion to PP for injection molding. Availability: Africa & Middle East; Asia Pacific; Europe; Latin America; North America Features: Chemical Resistant; Good Adhesion; Good Colorability; Good Flexibility; Good Moldability; Good Toughness; High Flow; Low Density; Medium Hardness; Low Specific Gravity; Lubricated; Slip; Without Fillers Uses: Consumer Applications; Flexible Grips; Handles; Overmolding; Rubber Replacement; Soft Touch Applications; Writing Instruments RoHS Compliance: RoHS Compliant Form: Pellets Processing Method: Injection Molding; Multi Injection Molding Information provided by Teknor Apex
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Physical Properties	Original Value	Comments

Density	0.890 g/cc	ASTM D792
Melt Flow	20 g/10 min @Load 2.16 kg, Temperature 190 °C	ASTM D1238

Mechanical Properties	Original Value	Comments
Hardness, Shore A	50 @Time 5.00 sec	Injection Molded; ASTM D2240
	52 @Time 1.00 sec	Injection Molded; ASTM D2240
Tensile Strength at Break	941 psi	Die C, 20 in/min, Across Flow; ASTM D412
	1110 psi	Die C, 20 in/min, Flow; ASTM D412
Tensile Stress at Strain	249 psi @Strain 100 %	Die C, 20 in/min, Across Flow; ASTM D412
	317 psi @Strain 100 %	Die C, 20 in/min, Flow; ASTM D412
	393 psi @Strain 300 %	Die C, 20 in/min, Across Flow; ASTM D412
	460 psi @Strain 300 %	Die C, 20 in/min, Flow; ASTM D412
Elongation at Break	630 %	Die C, 20 in/min, Across Flow; ASTM D412
	690 %	Die C, 20 in/min, Flow; ASTM D412
Tear Strength	159 pli	Die C, 20 in/min, Across Flow; ASTM D624
	167 pli	Die C, 20 in/min, Flow; ASTM D624
Compression Set	21 % @Temperature 22.8 °C, Time 79200 sec	Type 1; ASTM D395B

Processing Properties	Original Value	Comments
Rear Barrel Temperature	360 - 400 °F
Middle Barrel Temperature	360 - 400 °F
Front Barrel Temperature	360 - 400 °F
Nozzle Temperature	360 - 400 °F
Melt Temperature	360 - 400 °F
Mold Temperature	60.0 - 90.0 °F
Injection Pressure	200 - 800 psi
Back Pressure	25.0 - 100 psi
Cushion	0.150 - 1.00 in
Screw Speed	50 - 100 rpm

Descriptive Properties
Appearance	Clear/Transparent

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PTEKNQ0970 / 237461

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