Visico™ LE4423/LE4460/ LE4437

Category: PE, Unspecified , Polyethylene
Manufacturer: Borealis AG
Trademark: Visico™
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: 9x8caq_Visico-LE4423-LE4460-LE4437.pdf
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Visico LE4423/LE4460/LE4437

LE4423/LE4460/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 LE4423 base resin, along with the LE4460 brominated flame retardant masterbatch and the LE4437 catalyst, provides a highly scorch retardant compound with excellent thermal stability and good retardant 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 of LE4423 mixed with 20 parts of LE4460 and 5 parts of LE4437 is recognized by Underwriters Laboratories as VISICO HORIZONTAL. VISICO HORIZONTAL is designed to reduce normal PE flame spread characteristics and achieve an HB-1 flame rating on 14 AWG wires and larger. LE4437 also provides, in addition to catalyst, a stabilization package containing suitable antioxidants, a metal passivator and a metal deactivator. Properly mixed, during the extrusion process, LE4423/LE4460/LE4437 exhibits excellent thermal stability to oxidation.

LE4423/LE4460/LE4437 is readily pigmented to a variety of colors using standard wire & cable color concentrates designed for thermoplastic or crosslinked polyethylene. UV wether resistance is obtained by the addition of a suitable carbon black or UV additive. Using Visico LE4432 in place of LE4437 combines a tin catalyst along with the proper carbon black to provide a black, UV resistant, moisture crosslinking cable insulation.
General Information
Features
  • Flame Retardant
  • Good Thermal Stability
  • Good UV Resistance
Uses
  • Cable Jacketing
  • Wire & Cable Applications
  • Wire Jacketing
Agency Ratings
  • ASTM D 2655
  • CSA C-22.2 No. 1790-00
  • CSA C-22.2 No. 38
  • EC 502
  • HD 603 S1
  • NBN C 33-321
  • NF C 33-209
  • NF C 33-210
Appearance
  • Black
Processing Method
  • Extrusion
PhysicalNominal ValueUnitTest Method
Specific Gravity ASTM D792
    Base Resin 0.923g/cm³
    -- 10.941g/cm³
    -- 22.00g/cm³
Melt Mass-Flow Rate (MFR) (190°C/2.16 kg)0.90g/10 minASTM D1238
MechanicalNominal ValueUnitTest Method
Tensile Strength 16.5MPaASTM D638
Tensile Elongation (Break)300%ASTM D638
ElastomersNominal ValueUnitTest Method
Tensile Elongation (Break)300%ASTM D412
AgingNominal ValueUnitTest Method
Mechanical Properties After Aging in Air Oven, 121°C, 168 hr (Change in Tensile Strength)< -10%IEC 60811
ThermalNominal ValueUnitTest Method
Hot Creep 3ICEA T-28-562
    Elongation under load : 150°C < 50%
    Permanent deformation < 5.0%
Additional InformationNominal Value
Horizontal Flame Test 4Pass
ElectricalNominal ValueUnitTest Method
Volume Resistivity 1.0E+16ohms·cmASTM D257
Dielectric Strength > 22kV/mmASTM D149
Dielectric Constant (60 Hz)2.50ASTM D150
Dissipation Factor (60 Hz)5.0E-4ASTM D150
ExtrusionNominal ValueUnit
Cylinder Zone 1 Temp. 146°C
Cylinder Zone 2 Temp. 155°C
Cylinder Zone 3 Temp. 163°C
Cylinder Zone 4 Temp. 177°C
Die Temperature 177°C
Note Message
1 .Catalyst
2 .Masterbatch
3 .0.20 MPa
4 .14 AMG-30 mil
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