Teknor Apex Medalist® MD-145 Thermoplastic Elastomer

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Teknor Apex Medalist® MD-145 Thermoplastic Elastomer
Categories:	Polymer; Thermoplastic; Elastomer, TPE
Material Notes:	Notes: Medalist MD-145 is designed for medical and healthcare applications requiring high elasticity and excellent melt strength. Medalist MD-145 is a medium hardness, low density, translucent high performance thermoplastic elastomer, available in NAT and colors, which can be sterilized, exhibits excellent adhesion to polyporpylene and is suited for extrusion and injection molding. Features: Automotive Sterilizable; Chemical Resistant; Ethylene Oxide Sterilizeable; Good Adhesion; Good Melt Strength; Good Moldability; Good Sterilizability; Good Toughness; Halogen Free; Low Density; Low Flow; Low Specific Gravity; Lubricated; Medium Hardness; Radiation Sterilizable; Resilient; Without Fillers Uses: Bushing; Closures; Disposable Hospital Goods; Flexible Grips; Grommets; Knobs; Medical/Healthcare Applications; Pharmaceuticals; Plugs; Rubber Replacement Form: Pellets Processing Method: Extrusion; Injection Molding Information Provided by Teknor Apex
Key Words:	TPE
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Physical Properties	Original Value	Comments

Specific Gravity	0.890 g/cc	ASTM D792
Melt Flow	0.70 g/10 min @Load 5.00 kg, Temperature 200 °C	ASTM D1238

Mechanical Properties	Original Value	Comments
Tensile Strength at Break	1110 psi	Die C, 20 in/min; ASTM D412
Tensile Stress at Strain	152 psi @Strain 50 %	Die C, 20 in/min; ASTM D412
	186 psi @Strain 100 %	Die C, 20 in/min; ASTM D412
	286 psi @Strain 300 %	Die C, 20 in/min; ASTM D412
Elongation at Break	810 %	Die C, 20 in/min; ASTM D412
Tear Strength	22.8 kN/m	Type 1; ASTM D624
Compression Set	16 % @Temperature 73.0 °C, Time 79200 sec	ASTM D395

Processing Properties	Original Value	Comments
Rear Barrel Temperature	320 - 350 °F
Middle Barrel Temperature	360 - 400 °F
Front Barrel Temperature	380 - 420 °F
Nozzle Temperature	360 - 440 °F
Zone 1	340 - 370 °F
Zone 2	360 - 385 °F
Zone 3	365 - 400 °F
Zone 4	380 - 420 °C
Zone 5	400 - 440 °F
Die Temperature	400 - 440 °F
Melt Temperature	360 - 440 °F	Processing Temperature
Mold Temperature	80.0 - 120 °F
Back Pressure	50.0 - 100 psi
Cushion	0.150 - 1.00 in
Screw Speed	50 - 100 rpm

Descriptive Properties
Appearance	Translucent

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