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Master Bond adhesives

Borealis Visico™ ME4425/LE4462 Scorch Retardant Silane Crosslinkable MDPE Track Resistant Cable Insulation
Categories: Polymer; Thermoplastic; Polyethylene (PE); Medium Density (MDPE); Medium Density Polyethylene (MDPE), Extruded

Material Notes: Visico ME4425/LE4462 is a combination of LE4425, a Medium Density Visico base resin and a masterbatch, LE4462, which contains catalyst, carbon black, UV stabilizers and antioxidants. The LE4462 masterbatch accelerates the moisture-induced crosslinking reaction and imparts track resistance, resistance to degradation by ultraviolet light stability to the final product.

Visico ME4425/LE4462 is designed for use as a track resistant insulation for the outer layer of Spacer Aerial Cables and as insulation for Partial Insulated Cables. Although it has been used alone as insulation for cables rated at voltages as high as 35kV, it is recommended that a conductor shield such as LE540 be used for cables rated at voltages above 12 kV or where required by the applicable electrical code.

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Physical PropertiesMetricEnglishComments
Specific Gravity 0.935 g/cc0.935 g/ccASTM D1928 C/D 1505
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore D 5151ASTM D2240
Tensile Strength, Yield >= 13.8 MPa>= 2000 psiHeat Aging (7 days at 121°C); ASTM D638
 16.2 MPa2350 psiAt 20 in/min; ASTM D638
Elongation at Break 255 %255 %Heat Aging (7 days at 121°C); ASTM D412
 300 %300 %At 20 in/min; ASTM D638
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 1.00e+16 ohm-cm1.00e+16 ohm-cmASTM D257
Dielectric Strength >= 31.5 kV/mm>= 800 kV/inAt 40 mils; ASTM D149
Track Resistance 1.08e+6 sec1.08e+6 secDust and Fog; ASTM D2132
 
Thermal PropertiesMetricEnglishComments
Brittleness Temperature <= -76.0 °C<= -105 °FASTM D746
 
Processing PropertiesMetricEnglishComments
Middle Barrel Temperature >= 180 °C>= 356 °F
Front Barrel Temperature >= 160 °C>= 320 °F
Die Temperature >= 191 °C>= 375 °F
Head Temperature >= 190 °C>= 374 °F

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.

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PBOREA205 / 27512

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