Visico™ ME4425/Ambicat™ LE4476

Category: XLPE , Crosslinked Polyethylene
Manufacturer: Borealis AG
Trademark: Visico™
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: LF0gAv_Visico-ME4425-Ambicat-LE4476.pdf
PRICE: ​Order Products​ email   sales@su-jiao.com
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Message
Visico ME4425 / Ambicat LE4476 is a silane crosslinkable natural compound designed for low voltage power cables up to 6kV.

The base material Visico ME4425 in combination with the catalyst masterbatch Ambicat LE4476 will accelerate the moisture-induced crosslinking reaction. The system is highly active and crosslinks quickly at ambient conditions, in sauna or in hot water.

When properly mixed, addition of 5 parts of Ambicat LE4476 to 95 parts of Visico ME4425 , insulation with excellent thermo-oxidative stability, also in contact with copper as well as aluminium, is achieved. If the insulation is designed to meet the thermooxidative ageing demand requiring by IEC 60502 at 150°C in contact with copper, addition of 9 parts Ambicat LE4476 to Visico ME4425 is recommended.

Visico ME4425 / Ambicat LE4476 contains antioxidant, metal deactivator and a drying agent. Visico ME4425 contains a permanent scorch retardant additive, ensuring safe processing and enabling the use of highly active crosslinking catalyst.

Visico ME4425 / Ambicat LE4476 in combination meets the applicable requirements as below when processed using sound extrusion and testing procedure:
  • ASTM D 1248 Type I, Class A, Category 4
  • IEC 60502-1
  • HD 603 S1
  • HD 604 S1
  • NEMA WC 70
  • NEMA WC 71

The standards referred to above is a selection and is not complete coverage of all applicable standards. Contact your Borealis representative for additional information.

The base material Visico ME4425 in combination with the catalyst masterbatch Ambicat LE4476 is a ready-made two-component system which crosslinks quickly at ambient conditions, in sauna or in hot water. Visico ME4425 is based upon a cost optimised low density polyethylene, copolymerised with vinyl silane. The catalyst/carbon black masterbatch, Ambicat LE4476 , contains a novel, patented, environmentally friendly crosslinking catalyst and is completely free from heavy metals.
General Information
Additive
  • Antioxidant
  • Metal Deactivator
  • Scorch Resistant
Features
  • Antioxidant
  • Crosslinkable
  • Fast Cure
  • Good Processability
  • Good Stability
  • Good Surface Finish
  • Good Thermal Stability
  • Low Density
  • Low Die Swell
  • Oxidation Resistant
Uses
  • Cable Jacketing
  • Low Voltage Insulation
Agency Ratings
  • ASTM D 1248, I, Class A, Cat. 4
  • HD 603 S1
  • HD 604 S1
  • IEC 60502-1
  • NEMA WC-70 , WC-71
Forms
  • Pellets
PhysicalNominal ValueUnitTest Method
Density 10.930g/cm³ISO 1183
Melt Mass-Flow Rate (MFR) (190°C/2.16 kg)1.0g/10 minISO 1133
Environmental Stress-Cracking Resistance (50°C, 10% Igepal, F20)> 96.0hrIEC 60811-4-1/B
HardnessNominal ValueUnitTest Method
Shore Hardness (Shore D, 1 sec)55ISO 868
MechanicalNominal ValueUnitTest Method
Tensile Stress (Yield)> 20.0MPaISO 527-2/250
Tensile Strain (Break)> 300%ISO 527-2/250
AgingNominal ValueUnitTest Method
Change in Tensile Stress IEC 60811-1-2
    135°C, 240 hr 2< 25%
    150°C, 168 hr 3< 30%
ThermalNominal ValueUnitTest Method
Brittleness Temperature < -76.0°CASTM D746
Hot Set IEC 60811-2-1
    200°C 460%
    200°C 50.0%
Additional InformationNominal ValueUnit
Crosslinking
    23°C, 700.0 µm 61.5day
    23°C, 1.80 mm 77.0day
    90°C, 700.0 µm 8< 15.0min
    90°C, 1.80 mm 91.00hr
ElectricalNominal ValueUnitTest Method
Volume Resistivity > 1.0E+16ohms·cmIEC 60093
Electric Strength > 22kV/mmIEC 60243-1
Dielectric Constant (50 Hz)< 2.30IEC 60250
Dissipation Factor (50 Hz)< 5.0E-4IEC 60250
ExtrusionNominal ValueUnit
Cylinder Zone 1 Temp. 150°C
Cylinder Zone 2 Temp. 185°C
Cylinder Zone 3 Temp. 185°C
Cylinder Zone 4 Temp. 185°C
Melt Temperature 190 to 195°C
Die Temperature 185°C
Note Message
1 .Mixture 95:5, ISO 1872-2
2 .Addition of 5 % Catalyst after ageing
3 .Addition of 9 % Catalyst after ageing
4 .Elongation under load, 0.20 MPa
5 .Permanent deformation, 0.20 MPa
6 .In air, 50 % humidity
7 .In air, 50 % humidity
8 .Sauna or water bath
9 .Sauna or water bath
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