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Elexar® EL-8431

Category:	TPE , Thermoplastic Elastomer
Manufacturer:	Teknor Apex Company
Trademark:	Elexar®
Fillers:	-
Ports:	Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms	FOB, CIF, DAP, DAT, DDP
PDF:	hUaXqC_Elexar-EL-8431.pdf
PRICE:	Order Products email sales@su-jiao.com

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Elexar EL-8431 is a general purpose thermoplastic elastomer designed for electrical applications requiring flexibility over a wide temperature range. Elexar EL-8431 is a medium durometer that is UV stabilized and RoHS and REACH SVHC compliant. This grade is UL listed and is suitable for both injection molding and extrusion.

General Information
Features	Low Temperature Flexibility Flexibility at low temperatures High elasticity High tensile strength Good UV resistance Good flexibility Good coloring Low liquidity Ozone resistance Good weather resistance Sunlight resistance, 720 hours General Halogen-free Extended tensile rate
Uses	Underground cable Cable sheath Electrical/Electronic Applications Electrical wire sheath material Electrical conductor insulation material Wire and cable applications Wire sheath Industrial cable insulation material Connector cord sheath Terminal cable sheath material
Agency Ratings	UL 1581 UL 94
RoHS Compliance	RoHS compliance
UL File Number	QMTT2.73402 QMFZ2.E54709
Appearance	Translucent
Forms	Particle
Processing Method	Extrusion Injection molding

Physical	Nominal Value	Unit	Test Method
Specific Gravity	0.920	g/cm³	ASTM D792
Melt Mass-Flow Rate (MFR) (200°C/5.0 kg)	6.0	g/10 min	ASTM D1238

Hardness	Nominal Value	Unit	Test Method
Durometer Hardness (Shore A)	69		ASTM D2240

Mechanical	Nominal Value	Unit	Test Method
Flexural Modulus	37.9	MPa	ASTM D790

Elastomers	Nominal Value	Unit	Test Method
Tensile Stress ¹			ASTM D412
100% strain, 0.508mm ²	2.48	MPa	ASTM D412
300% strain, 0.508mm ³	4.52	MPa	ASTM D412
Tensile Strength (Yield, 0.508 mm)	17.2	MPa	ASTM D412
Tensile Elongation (fracture, 0.508mm)	710	%	ASTM D412

Aging	Nominal Value	Unit	Test Method
Change in Tensile Strength in Air (136°C, 168 hr)	1.0	%	ASTM D573
Change in Ultimate Elongation in Air (136°C, 168 hr)	-4.0	%	ASTM D573
Change in Tensile Strength (60°C, 168 hr, in IRM 902 Oil)	-18	%	ASTM D471
Change in Ultimate Elongation (60°C, 168 hr, in IRM 902 Oil)	-6.0	%	ASTM D471

Thermal	Nominal Value	Unit	Test Method
Continuous Use Temperature	105	°C	UL 1581
Brittleness Temperature	< -80.0	°C	ASTM D746
RTI Elec	90.0	°C	UL 746
RTI	90.0	°C	UL 746

Electrical	Nominal Value	Unit	Test Method
Volume Resistivity (50°C)	9.1E+16	ohms·cm	ASTM D257
Dielectric Strength	38	kV/mm	ASTM D149
Dielectric Constant (1 kHz)	2.10		ASTM D150
Insulation Resistance	1.0E+12	ohms	IEC 60167

Flammability	Nominal Value	Unit	Test Method
Flame Rating (0.810 mm, All Colors)	HB		UL 94
Oxygen Index	18	%	ASTM D2863

Injection	Nominal Value	Unit
Rear Temperature	199 - 216	°C
Middle Temperature	213 - 221	°C
Front Temperature	221 - 227	°C
Nozzle Temperature	221 - 229	°C
Processing (Melt) Temp	221 - 229	°C
Mold Temperature	25.0 - 65.6	°C
Injection Pressure	1.38 - 6.89	MPa
Injection Rate	Moderate-Fast
Back Pressure	0.172 - 0.345	MPa
Screw Speed	50 - 100	rpm
Cushion	3.81 - 25.4	mm

Injection instructions
无需干燥。但如果湿度过大，则将粒料在150°F (65°C)的温度下干燥2-4小时。

Extrusion	Nominal Value	Unit
Cylinder Zone 1 Temp.	193 - 210	°C
Cylinder Zone 2 Temp.	199 - 216	°C
Cylinder Zone 3 Temp.	213 - 221	°C
Cylinder Zone 5 Temp.	221 - 227	°C
Die Temperature	221 - 229	°C

Extrusion instructions
螺杆转速30 - 100 rpm

Note Message
1 .	die cut from extruded tapes
2 .	Mouth die C, 510mm/min
3 .	C mold, 510mm/min

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