Teknor Apex Telcar® TL-8421 Thermoplastic Elastomer

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Teknor Apex Telcar® TL-8421 Thermoplastic Elastomer
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Vinyl (PVC); PVC, Wire and Cable Grade
Material Notes:	Notes: RoHS Compliant Uses: Appliance Wire Insulation; Appliance Wire Jacketing; Cable Jacketing; Connectors; Flexible Cord Jacketing; Industrial Cable Jacketing; Terminal Cable Jacketing; Underground Power Cable; Wire and Cable Applications; Wire Jacketing Wire Types: SJEOW Agency Ratings: UL 1581; QMTT2.E73402 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: Moderate-Fast Extrusion Notes: Screw Speed: 30 to 100 rpm Information Provided by Teknor Apex
Key Words:	TPE
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Physical Properties	Original Value	Comments

Specific Gravity	0.980 g/cc	ASTM D792
Melt Flow	16 g/10 min @Load 5.00 kg, Temperature 200 °C	ASTM D1238

Mechanical Properties	Original Value	Comments
Hardness, Shore A	92	ASTM D2240
Tensile Strength at Break	161 psi	Change in tensile strength after 18 hours at 250°F, in animal fat; ASTM D471
	1380 psi	Change in tensile strength after 18 hours at 250°F, in vegetable oil; ASTM D471
	2300 psi	ASTM D412
Elongation at Break	420 %	After Aging 18 hours at 250°F, in vegetable oil; ASTM D471
	450 %	After Aging 18 hours at 250°F, in animal fat; ASTM D471
	600 %	ASTM D412

Electrical Properties	Original Value	Comments
Dielectric Constant	2.4 @Frequency 1000 Hz	ASTM D150

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	105 °C	Continuous Use
Brittleness Temperature	<= -76.0 °F	ASTM D746
Oxygen Index	12 %	ASTM D2863

Processing Properties	Original Value	Comments
Rear Barrel Temperature	390 - 420 °F
Middle Barrel Temperature	415 - 430 °F
Front Barrel Temperature	430 - 440 °F
Nozzle Temperature	430 - 445 °F
Zone 1	380 - 410 °F
Zone 2	390 - 420 °F
Zone 3	415 - 430 °F
Zone 5	430 - 440 °F
Die Temperature	430 - 445 °F
Melt Temperature	430 - 445 °F	Processing Temperature
Mold Temperature	77.0 - 150 °F
Injection Pressure	200 - 1000 psi
Back Pressure	25.0 - 50.0 psi
Cushion	0.150 - 1.00 in
Screw Speed	50 - 100 rpm

Descriptive Properties
Appearance	Opaque
Change in Volume (%)	1	after 18 hours at 250°F, in animal fat
	1	after 18 hours at 250°F, in vegetable oil

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PTEKNP562 / 129635

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