Borealis Borstar® LE8706 Natural Bimodal LLDPE Jacketing Compound for Energy and Communication Cables

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Borealis Borstar® LE8706 Natural Bimodal LLDPE Jacketing Compound for Energy and Communication Cables
Categories:	Polymer; Thermoplastic; Polyethylene (PE); Linear Low Density (LLDPE)
Material Notes:	Borstar® LE8706 is a natural colorable linear low density (LLD) jacketing compound, which is produced with the Borealis proprietary Borstar® bimodal process technology. Borstar technology allows the manufacturing of polymers outside the traditional MFR and density range making it possible to optimize processability, reduce shrinkage and yet provide excellent physical toughness and environmental stress crack resistance (ESCR). Borstar® LE8706 contains a well dispersed UV-stabilizer in sufficient amount providing a measure of weathering resistance. Applications: jacket for energy and communication cables. The abrasion resistance combined with low coefficient of friction makes it ideally suitable for the jacketing of energy and communication cables. Borstar® LE8706 offers a balance of properties giving advantages in manufacturing, installation and lifetime performance of communication and energy cables. Specifications: Borstar® LE8706 meets the applicable requirements when processed using sound extrusion practice and testing procedure: ASTM D 1248 Type I, Class A, Category 4, Grade E4, E5, J3; BS 6234: Type 03, TS2; EN 50290-2-24; IEC 60502, Type ST7; IEC 60840, Type ST7; HD 603 S1, Part 1, table 4B, DMP 6; HD 620 S1, Part 1, table 4B, DMP 5, 16 Information provided by Borealis AG
Key Words:	LDPE
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Physical Properties	Original Value	Comments

Density	0.920 g/cc	base resin; ISO 1872-2/ISO 1183
ESCR 10% Igepal®	>= 5.0 hour @Temperature 50.0 °C	F0; IEC 60811-4-1/B
Melt Flow	0.70 g/10 min @Load 2.16 kg, Temperature 190 °C	ISO 1133

Mechanical Properties	Original Value	Comments
Hardness, Shore D	50	3s; ISO 868
	52	1s; ISO 868
Tensile Strength at Break	28.0 MPa	50mm/min; ISO 527
Elongation at Break	800 %	50mm/min; ISO 527
Flexural Modulus	400 MPa	ASTM D790

Electrical Properties	Original Value	Comments
Volume Resistivity	1.00e+6 ohm-cm	DC; IEC 60093
Dielectric Constant	2.3 @Frequency 1e+6 Hz	IEC 60250
Dielectric Strength	<= 20.0 kV/mm	IEC 60243
Dissipation Factor	0.00015 @Frequency 1e+6 Hz	IEC 60250

Thermal Properties	Original Value	Comments
Brittleness Temperature	<= -76.0 °C	ASTM D746

Processing Properties	Original Value	Comments
Processing Temperature	90.0 °C	preheating temperature
	150 °C	feed section
Middle Barrel Temperature	170 °C	metering section
Head Temperature	190 °C	die head
Drying Temperature	90.0 °C	drying temperature

Descriptive Properties
High Temperature Pressure Test, %	< 15%	115°C; 6 hours; IEC 60811-3-1

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PBOREA392 / 108651

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