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Visico™ LE4421 / Ambicat™ LE4476

Technical Datasheet | Supplied by Borealis

Visico™ LE4421 / Ambicat™ LE4476 by Borealis is a silane crosslinkable compound system. Visico™ LE4421 (base material) is a low density polyethylene (LDPE), copolymerized with vinyl silane. Ambicat™ LE4476 is an ambient crosslinking catalyst masterbatch. The system is highly active and crosslinks quickly at ambient conditions, in sauna or in hot water. It offers excellent processability, outstanding curing speed, storage stability, excellent surface finish and no volatiles. It is designed for processing by PVC/PE extrusion. The insulation system exhibits excellent thermo-oxidative stability in contact with copper and aluminium. Visico™ LE4421 / Ambicat™ LE4476 is designed for insulation of low voltage energy cables, range up to 6 kV.

Visico™ LE4421 / Ambicat™ LE4476 Properties

Physical Properties

Value & Unit

Test Condition

Test Method

Density

923 kg/m³

(Mixture 95 : 5)

ISO 1183-1A

Melt Mass-Flow Rate (MFR or MFI = Melt Flow Index or MI = Melt Index)

1.0 g/10 min

(190°C, 2.16 kg)

ISO 1133

Environmental Stress Cracking Resistance (ESCR)

> 96 hr

(50°C, Igepal 10%, F20)

IEC 60811-406

Extrusion Properties

Value & Unit

Test Condition

Test Method

Barrel 1 Temperature

150 °C

Barrel 2 Temperature

170 °C

Barrel 3 Temperature

170 °C

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Visico™ LE4421 / Ambicat™ LE4476

Visico™ LE4421 / Ambicat™ LE4476 Properties

Physical Properties

Visico™ LE4421 / Ambicat™ LE4476 Processing Guidelines

Extrusion Properties