Conveyor belts used in the metals industry must cope with coke, ore and other materials, as well as difficult environmental conditions, such as heat. In some applications, conventional belts can be ripped or torn by large lumps of heavy, sharp materials, either falling from height or becoming trapped. These belts require a carcass strong enough to withstand heavy impact, ripping, and tearing. Moreover, the covers must be able to resist the damaging effects of heat and very abrasive materials. Heat weakens abrasion and adhesion properties, leading to premature delamination between the carcass and the covers over time.