Visico™ LE4423/LE4432 is a silane crosslinkable black compound system designed for insulation of low voltage energy cables and covering/insulation of overhead cables. Visico™ LE4423 is a low density polyethylene, copolymerised with vinyl silane. Visico™ LE4432 is a crosslinking catalyst masterbatch specially designed to be used with Visico base resins. The system crosslinks quickly in sauna or in hot water. Cable insulation with a proper mixture of Visico LE4423 (90 parts) and Visico™ LE4432 (10 parts) exhibits excellent thermooxidative stability. The combination is suitable for both copper and aluminum conductors. The final product contains nominal 2,5% of fine size carbon black ensuring excellent weatherability.