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Ensinger PEI

Borealis Visico™ LE4423/LE4460/LE4437 Scorch Retardant, Moisture-Crosslinking Polyethylene Compound for Low Voltage Installation
Categories: Polymer; Thermoplastic; Polyethylene (PE); Low Density (LDPE); Low Density Polyethylene (LDPE), Wire/Cable Grade

Material Notes: Visico LE4423/LE4460/LE4437 is a natural, halogen-based, moisture-induced crosslinking polyethylene compound that is designed for use as low voltage wire insulation and jacketing. The combination of the Visico LE4423 base resin, along with the LE4460 brominated flame retardant masterbatch and the LE4437 tin catalyst masterbatch provides a highly scorch retardant compound with excellent thermal stability and good flame properties. LE4423/LE4460/LE4437 contains a patented scorch retardant additive (SRA) that increases the processing window for a moisture crosslinking compound and minimizes the tendency for premature crosslinking in the extruder, head or die. A finished compound that is composed of 75 parts LE4423 mixed with 20 parts of LE4460 and 5 parts of LE4437 is recognized by Underwriters Laboratories as Visico Horizontal.

LE4422/LE4460/LE4437 is recommended for use as insulation for low voltage control cables and power cables up to 6 kV in rating.

Information provided by the Manufacturer.

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Physical PropertiesMetricEnglishComments
Density 0.923 g/cc0.0333 lb/in³LE 4423; ASTM D792
 0.941 g/cc0.0340 lb/in³LE 4437; ASTM D792
 2.00 g/cc0.0723 lb/in³LE 4460; ASTM D792
Melt Flow 0.90 g/10 min0.90 g/10 minLE 4423; ASTM D1238
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Yield >= 14.58 MPa>= 2115 psiHeat Aging (7 days at 121°C); ASTM D412
 16.2 MPa2350 psiASTM D412
Elongation at Break <= 50 %<= 50 %Hot Creep Test (150°C, .2 MPa); ICEA T-28-562
 270 %270 %Heat Aging (7 days at 121°C); ASTM D412
 300 %300 %ASTM D412
Tensile Set <= 5.0 %<= 5.0 %Hot Creep Test (150°C,.2 MPa); ICE T-28-562
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 1.00e+16 ohm-cm1.00e+16 ohm-cmASTM D257
Dielectric Constant 2.3
@Frequency 60 Hz
2.3
@Frequency 60 Hz
ASTM D150
Dielectric Strength >= 21.7 kV/mm>= 550 kV/inASTM D149
Dissipation Factor 0.00050
@Frequency 60 Hz
0.00050
@Frequency 60 Hz
ASTM D150
 
Processing PropertiesMetricEnglishComments
Middle Barrel Temperature >= 163 °C>= 325 °F
Front Barrel Temperature >= 146 °C>= 295 °F
Die Temperature >= 177 °C>= 350 °F
Head Temperature >= 177 °C>= 351 °F
 
Descriptive Properties
Horizontal Flame TestPass14AWG-30mil, UL 1581

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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