Borealis ME1254 MDPE

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Borealis ME1254 MDPE
Categories:	Polymer; Thermoplastic; Polyethylene (PE); Medium Density (MDPE)
Material Notes:	ME1254 is a fully formulated, medium-density polyethylene compound, containing an Azodicarbonamide (ADCA)-free chemical blowing agent, for chemically foamed telesingles. Typical characteristics: Outstanding extrusion stability Consistent cell structure Good surface finish ADCA-free Applications: Dry core and petroleum jelly filled cables Foam or foam-skin insulation for telephone singles and data cable with typical expansion of 35-40%. Specifications: ME1254 is expected to meet the applicable requirements included in the below mentioned standards provided it is processed using sound material handling and processing practices as well as appropriate testing procedures. EN 50290-2-23; EN 60811-408 Information provided by Borealis AG
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Physical Properties	Metric	English	Comments

Bulk Density	0.500 - 0.600 g/cc	0.0181 - 0.0217 lb/in³
Density	0.943 g/cc	0.0341 lb/in³	ISO 1183-1
Oxidative Induction Time (OIT)	>= 60.0 min @Temperature 600 °C	>= 60.0 min @Temperature 1110 °F	ISO 11357-6
Melt Flow	0.950 g/10 min @Load 5.00 kg, Temperature 140 °C	0.950 g/10 min @Load 11.0 lb, Temperature 284 °F	ISO 1133-1
Storage Temperature	10.0 - 30.0 °C	50.0 - 86.0 °F

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	58.0 @Time 1.00 sec	58.0 @Time 0.000278 hour	ISO 868
Tensile Strength	11.0 MPa	1600 psi	25 mm/min; ISO 527-2
	11.0 MPa	1600 psi	25 mm/min, expanded ( 38 %) insulation; IEC 60811-408
Elongation at Break	500 %	500 %	25 mm/min; ISO 527-2
	500 %	500 %	25 mm/min, expanded ( 38 %) insulation; IEC 60811-408

Electrical Properties	Metric	English	Comments
Dielectric Constant	2.32 @Frequency 1e+6 Hz	2.32 @Frequency 1e+6 Hz	ASTM D150
Dissipation Factor	0.000500 @Frequency 1e+6 Hz	0.000500 @Frequency 1e+6 Hz	ASTM D150

Processing Properties	Metric	English	Comments
Processing Temperature	100 °C	212 °F	Conductor preheating
Zone 1	110 °C	230 °F
Zone 2	145 °C	293 °F
Zone 3	190 °C	374 °F
Zone 4	205 °C	401 °F
Zone 5	220 °C	428 °F
Die Temperature	220 °C	428 °F
Melt Temperature	220 °C	428 °F
Shelf Life	18.0 Month	18.0 Month

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PBORE9815 / 323172

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