These belts are traditionally best known for their ability to operate at high-temperature, but they offer benefits way beyond this.
They are strong - as strong as 2-ply PVC - whilst having an easily-cleaned surface similar to Polyurethane. (PU) Bizarely, the belt has the seemingly contradictory properties of high-grip AND easy release. (e.g. it resists produce sticking). The combination of high temperature, food-grade hygienic surface, grip and release makes it very popular in the baking and confectionery industries.
In the wider industrial sphere, its high temperature resistance is comparable to PTFE/Kevlar belting, except that it is physically stronger than those materials. It's non-stick characteristic is not quite as good as PTFE, nor is its ability to go around knife-edges. (although with a minimum knife-edge radius of just 4mm, it is no slouch either).The belt consists of a low-friction nylon backing, with a Silicon impregnated carrying surface. It can be provided as vulcanised "endless" loops, as well as working with steel fasteners, although a steel fastener will reduce its maximum operating temperature.