Above: BASF developed a custom additive package for Siechem for submarine cable applications

number of 5G antenna cable applications. These include: buffers for high-speed data fibres at the core of the cable; jackets for the multi-fibre core; jackets for the bundles of 600V control cable surrounding the core; and sheathing for the entire construction. The company says compounds can be tailored to meet the different specifications of each wireless carrier, which may call for different levels of oil-resistance, UV-resistance, low- and high-temperature resistance, and wet- and dry- rated insulation performance. Its Halguard non- halogenated low-smoke grades for 5G, which are designed to provide an alternative to PVC, include a stress crack-resistant compound for jacketing over corrugated metal armour. Italian company Padanaplast, which specialises

in crosslinkable polyolefin (XLPO-HFFR) com- pounds for wires and cables, has expanded its range with a number of grades that meet the stringent needs of electric mobility in the automo- tive industry. These include a new experimental grade, Cogegum GFR 1709-27, which has been specifically developed for ultra-flexible T4 battery cables for next generation EV powertrains. The company’s Cogegum GFR 1401-76 and GFR 1401-190 grades comply with most relevant automotive cable standards, including ISO 6722 Class C and SAE J 1128, and are intended for T3 primary insulation. They are said to be optimised for technical performance and cost-effective production. Polidiemme G grades are EN 50620 compliant and are already being used as insulating materials for EV charging cables. All grades are crosslinked using silane-grafting technology and use a non-halogenated flame-retardant system.

Submarine protection Plastic additives from BASF are being used to improve the manufacture and functionality of underwater cable sheathing. Siechem Wires and


Cables, a leading manufacturer and exporter of marine and shipboard cables in India, has devel- oped submarine fibre optic cables using a tailor- made BASF plastic additives package comprising of an Irganox antioxidant and light Chimassorb and Tinuvin light stabilisers. Siechem’s deep-water fibre-optic cables comprise optic fibres, copper power conductor and steel wire protection membrane sheathed in an outer layer of HDPE, which is crosslinked using the electron beam (EB) process to improve thermal, chemical, barrier, impact and other mechanical properties. According to BASF, its antioxidant and light stabiliser package is optimised to ensure highly efficient crosslinking and improved durabil- ity during service life. The additives also reduce colour formation and provide processing stability during pelletisation and extrusion of the HDPE resin.

Adding capacity Magnifin Magnesiaprodukte says it has conclud- ed preparatory work for the construction of a second production site to meet growing global demand for high-purity, halogen-free magnesium hydroxide fire retardants from sectors such as cable production. Its Magnifin coated and uncoated magnesium hydroxides flame retardants are used in a wide range of polymer applications, especially in thermoplastic materials and elastomers requir- ing processing temperatures in excess of 200°C. Typical applications include energy and LAN data cables and automotive wire and cable. Magnifin Magnesiaprodukte is a 50/50 joint

venture between Martinswerk, part of the Fire Retardant Additives (FRA) business of Huber Engineered Materials, and Veitscher Vertriebsge- sellschaft, which is part of RHI Magnesita. The company has not disclosed the location for the new plant but has said it will manufacture the same product portfolio that is currently produced at the Magnifin Magnesiaprodukte site at Breitenau in Austria.



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