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Borealis Visico™ LE4421/LE4437 Scorch Retardant, Moisture-Crosslinking Polyethylene Compound for Low Voltage Installation

Category Polymer , Thermoplastic , Polyethylene (PE) , LDPE , Low Density Polyethylene (LDPE), Wire/Cable Grade
Manufacturer Borealis
Trade Name Visico™
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Borealis Visico™ LE4421/LE4437 Scorch Retardant, Moisture-Crosslinking Polyethylene Compound for Low Voltage Installation.pdf
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Material Notes:
Visico LE4421/LE4437 is a natural, moisture-induced crosslinking polyethylene compound that is designed for use as low voltage wire insulation and jacketing. The combination of a Visico base material, LE4421, and a tin catalyst masterbatch, LE4437 provides a highly scorch retardant compound with excellent thermal stability. LE4421/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. LE4437 should be added to LE4421 directly in the extruder hopper by dry blending at a ratio of 5 parts suitable antioxidants, a metal passivator and a metal deactivator. Properly mixed, during the extrusion process, LE4421/LE4437 exhibits excellent thermal stability to oxidation.LE4421/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.
Physical Properties Metric English Comments
Density 0.923 g/cc
0.0333 lb/in³
LE 4421; ASTM D792
0.941 g/cc
0.0340 lb/in³
LE 4437; ASTM D792
Melt Flow 0.90 g/10 min
0.90 g/10 min
LE 4421; ASTM D1238
Mechanical Properties Metric English Comments
Tensile Strength, Yield >= 13.28 MPa
>= 1926 psi
Heat Aging (7 days at 121°C); ASTM D412
14.8 MPa
2140 psi
ASTM 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 Properties Metric English Comments
Electrical Resistivity 1.00e+16 ohm-cm
1.00e+16 ohm-cm
ASTM D257
Dielectric Constant 2.3

@Frequency 60 Hz
2.3

@Frequency 60 Hz
ASTM D150
Dielectric Strength >= 21.7 kV/mm
>= 550 kV/in
ASTM D149
Dissipation Factor 0.00050

@Frequency 60 Hz
0.00050

@Frequency 60 Hz
ASTM D150
Processing Properties Metric English Comments
Middle Barrel Temperature >= 171 °C
>= 340 °F
Front Barrel Temperature >= 146 °C
>= 295 °F
Die Temperature >= 177 °C
>= 350 °F
Head Temperature >= 177 °C
>= 351 °F
Descriptive Properties Value Comments
Horizontal Flame Test Pass
14AWG-30mil, UL 1581
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