Chorded   Chord Company extend their XLPE or cross-linked polyethylene insulation material to their Odyssey and Epic cables, considered to be an upgrade over using Teflon aka PTFE as dielectric. "With material technology developing and improving, alternatives to PTFE such as XLPE have allowed us to make performance improvements where the prohibitive cost of our flagship Taylon insulation prevents its use." Pricing is £30/m for off-the-spool OdysseyX and £600/pr/1.5m for terminated/dressed EpicXL.