September 07, 2020

HE1355, the ADCA-free compound for telecommunication cables: World’s first chemically-foamed, high density polyethylene grade free of azodicarbonamide

HE1355 is the first ADCA-free compound for telecommunication cables. ADCA is classified as a Substance of Very High Concern (SVHC) and has recently been recommended for inclusion in the Annex XIV of REACH. Borealis anticipated the potentially disruptive effects to the cable industry and gives customers a competitive edge and peace of mind with HE1355.

The chemical compound ADCA is principally used as a blowing agent in the production of foamed plastics. At present, it is classified as a Substance of Very High Concern (SVHC) by the European Chemicals Agency and has recently been recommended for inclusion in the Annex XIV of REACH, the so-called “Authorisation List.” Inclusion on this list would require producers, converters, and other downstream users to seek special temporary permission for the use of this substance in production.

Anticipating the potentially disruptive effects to the cable industry, Borealis developed a solution for its global customers by creating a new HDPE compound, HE1355. Free of ADCA and all other SVHCs, HE1355 matches the technical performance of other chemically foamed HDPE grades currently on the market. It combines the proven advantages of its predecessors, Borealis compounds HE1345 and HE1344: superb processability, excellent stabilization, and the requisite toughness for fast multi-pair assembly.

The optimal cell structure of HE1355 makes it highly suitable for applications such as foam or foam-skin insulation for telephone singles and data cables with a typical expansion of 35%-40%, as well as for dry core and petroleum jelly-filled cables. The new compound was successfully tested in a series of customer trials before its global launch in 2019.

“In developing HE1355, Borealis has gone beyond compliance to offer our customers an innovative and high-performing solution that allows for a seamless transition from existing grades to a new and improved one,” explains Bart Verheule, Borealis Head of Marketing, Energy. “Going ADCA-free with HE1355 is a win-win all around. It not only future-proofs cable producers from the effects of a potential ADCA ban, but also allows us to help them bring energy all around.”

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