Teknor Apex ELEXAR® EL 8421 Thermoplastic Elastomer

Login to see your most recently viewed materials here. Or if you don't have an account with us yet, then click here to register.

Teknor Apex ELEXAR® EL 8421 Thermoplastic Elastomer
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Thermoplastic Elastomer, Melt-Processible Rubber
Material Notes:	Notes: Elexar® EL-8421 is a high performance thermoplastic elastomer designed for the electrical applications requiring flexibility over a wide temperature range. Elexar® EL-8421 is a high durometer that is RoHS and REACH SVHC compliant. This grade is UL listed and is suitable for both injection molding and extrusion. Features: Good Colorability; Halogen Free; Heat Aging Resistant; High Hardness; High Tensile Strength; Medium Density; Medium Flow Uses: Appliance Wire Insulation; Appliance Wire Jacketing; Cable Jacketing; Connectors; Flexible Cord Jacketing; Industrial Cable Insulation; Terminal Cable Jacketing; Underground Power Cable; Wire & Cable Applications; Wire Jacketing Form: Pellets Processing Method: Extrusion; Injection Molding Information provided by Teknor Apex Company
Vendors:	No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
Printer friendly version Download as PDF Download to Excel (requires Excel and Windows) Export data to your CAD/FEA program Add to Folder:

Physical Properties	Metric	English	Comments

Specific Gravity	0.980 g/cc	0.980 g/cc	ASTM D792
Melt Flow	16 g/10 min @Load 5.00 kg, Temperature 200 °C	16 g/10 min @Load 11.0 lb, Temperature 392 °F	ASTM D1238

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	91	91	ASTM D2240
Tensile Strength, Yield	20.0 MPa	2900 psi	0.02 in, Die C, 20 in/min, die cut from extruded tapes; ASTM D412
	8.00 MPa @Treatment Temp. 121 °C, Time 64800 sec	1160 psi @Treatment Temp. 250 °F, Time 18.0 hour	in Vegetable Oil; ASTM D471
	14.0 MPa @Treatment Temp. 121 °C, Time 64800 sec	2030 psi @Treatment Temp. 250 °F, Time 18.0 hour	in Animal Fat; ASTM D471
	20.0 MPa @Treatment Temp. 136 °C, Time 605000 sec	2900 psi @Treatment Temp. 277 °F, Time 168 hour	in Air; ASTM D573
	21.39 MPa @Treatment Temp. 60.0 °C, Time 605000 sec	3103 psi @Treatment Temp. 140 °F, Time 168 hour	in IRM 902 Oil; ASTM D471
Tensile Stress at Strain	6.58 MPa @Strain 100 %, Thickness 0.508 mm	955 psi @Strain 100 %, Thickness 0.0200 in	Die C, 20 in/min, die cut from extruded tapes; ASTM D412
	8.62 MPa @Strain 300 %, Thickness 0.508 mm	1250 psi @Strain 300 %, Thickness 0.0200 in	Die C, 20 in/min, die cut from extruded tapes; ASTM D412
Elongation at Break	630 %	630 %	0.02 in, Die C, 20 in/min, die cut from extruded tapes; ASTM D412
	441 % @Treatment Temp. 121 °C, Time 64800 sec	441 % @Treatment Temp. 250 °F, Time 18.0 hour	in Vegetable Oil; ASTM D471
	472.5 % @Treatment Temp. 121 °C, Time 64800 sec	472.5 % @Treatment Temp. 250 °F, Time 18.0 hour	in Animal Fat; ASTM D471
	573.3 % @Treatment Temp. 136 °C, Time 605000 sec	573.3 % @Treatment Temp. 277 °F, Time 168 hour	in Air; ASTM D573
	655.2 % @Treatment Temp. 60.0 °C, Time 605000 sec	655.2 % @Treatment Temp. 140 °F, Time 168 hour	in IRM 902 Oil; ASTM D471

Electrical Properties	Metric	English	Comments
Volume Resistivity	3.50e+16 ohm-cm @Temperature 50.0 °C	3.50e+16 ohm-cm @Temperature 122 °F	ASTM D257
Insulation Resistance	9.00e+10 ohm	9.00e+10 ohm	IEC 60167
Dielectric Constant	2.4 @Frequency 1000 Hz	2.4 @Frequency 1000 Hz	ASTM D150
Dielectric Strength	38.2 kV/mm	970 kV/in	ASTM D149

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	105 °C	221 °F	Continuous; UL-1581
Brittleness Temperature	-65.6 °C	-86.1 °F	ASTM D746
UL RTI, Electrical	50.0 °C	122 °F	UL746
UL RTI, Mechanical with Impact	50.0 °C	122 °F	UL746
Flammability, UL94	HB @Thickness 0.762 mm	HB @Thickness 0.0300 in	All Colors
Oxygen Index	18 %	18 %	ASTM D2863

Processing Properties	Metric	English	Comments
Rear Barrel Temperature	199 - 216 °C	390 - 420 °F
Middle Barrel Temperature	213 - 221 °C	415 - 430 °F
Front Barrel Temperature	221 - 227 °C	430 - 440 °F
Nozzle Temperature	221 - 229 °C	430 - 445 °F
Zone 1	193 - 210 °C	380 - 410 °F
Zone 2	199 - 216 °C	390 - 420 °F
Zone 3	213 - 221 °C	415 - 430 °F
Zone 4	221 - 227 °C	430 - 440 °F
Zone 5	221 - 227 °C	430 - 440 °F
Die Temperature	221 - 229 °C	430 - 445 °F
Melt Temperature	221 - 229 °C	430 - 445 °F	Processing Temp
Mold Temperature	25.0 - 65.6 °C	77.0 - 150 °F
Injection Pressure	1.38 - 6.89 MPa	200 - 1000 psi
Back Pressure	0.172 - 0.345 MPa	25.0 - 50.0 psi
Cushion	0.381 - 2.54 cm	0.150 - 1.00 in
Screw Speed	50 - 100 rpm	50 - 100 rpm

Descriptive Properties
Swell	1%;Aged 18 hrs at 121°C in Animal Fat. (ASTM D471)
	1%;Aged 18 hrs at 121°C in Vegetable oil. (ASTM D471)

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.

Users viewing this material also viewed the following:
Saint-Gobain Tygon® PT-3350 Sanitary Silicone Tubing Formulation
DuPont Biomax® TPS 2501
Teknor Apex ELEXAR® EL 8730 Thermoplastic Elastomer
Teknor Apex Elexar® EL-8730A Thermoplastic Elastomer
Teknor Apex Terraloy™ MB 20001A Thermoplastic Starch + Copolyester

PTEKNO260 / 70003

	Advertise with MatWeb!
	Data sheets for over 180,000 metals, plastics, ceramics, and composites.
	HOME • SEARCH • TOOLS • SUPPLIERS • FOLDERS • ABOUT US • FAQ • LOG IN

System Message