Use of synthetic rope in high-temperature or fire environments

The use of aramid fibers in high-temperature applications has been popular since their inception. With the high-critical temperature resistance and engineering properties intrinsic to aramid fibers, rope manufacturers have been using them with much success in a variety of applications. However, the aramid-fiber rope alone is unable to withstand direct flames as required by some applications. Applying a proprietary coating containing a proprietary fire-resistant ingredient can increase the damage resistance of direct flames. When applied to the rope, the coating provides protection that allows the rope to withstand direct flames considerably longer than a rope without the coating. Ropes produced with specific construction variables in combination with specialized coating technology can replace wire rope in high heat and open flame applications. The following have been noted: · Aramid fiber has the ability to withstand and perform under high temperatures. · It is necessary to apply a fire resistant coating to an aramid rope to provide thermal insulation and for it to resist direct flames. · When compared with wire rope of an equal diameter a rope made of aramid fiber can still exceed the necessary working loads after exposure to a high-temperature environment. · When the diameter of an aramid-fiber rope is increased, it performs as well as wire rope in a high temperature or fire environment, at a significant weight savings. Samson, Teijin Aramid, and passive fire protection partners have been working together to explore possible high-temperature cordage applications. This paper discusses the work conducted in the past three years, demonstrating that the combination of aramid fibers and advanced fire-resistant coating technology can create high-performance ropes for fire-resistant applications.