Estane X-1311, a thermoplastic polyurethane (TPU) developed for cable jacketing and molding, delivers a Limited Oxygen Index (LOI) of 40. The wind industry recommends compounds with higher LOI to reduce flame spread while maintaining flexibility and abrasion resistance. The material has a Shore hardness of 53D, and is UL-94 rated for V-0 on the vertical burn of a 75-mil sample thickness. The material has a reputation for better abrasion, wear, tear and puncture resistance than conventional materials such as rubber or PVC.
Filed Under: Cables & connectors, Turbines