What is the key ingredient in the Poly-Fiber covering system?

The key ingredient in the Poly-Fiber covering system is polyester. This material is essential in the context of aircraft fabric covering because it offers a good balance of strength, flexibility, and durability. Polyester is known for its excellent resistance to moisture and UV degradation, which is critical for an aircraft covering that will be exposed to various weather conditions during flight.

In addition, polyester fabric is lightweight and provides a high level of stability, meaning it maintains its shape and performance over time, which is vital for the safety and efficiency of an aircraft. The Poly-Fiber system utilizes polyester in conjunction with other components, such as adhesives and coatings, to create a comprehensive fabric covering system that meets the stringent demands of aviation use.

While other materials like vinyl or fiberglass have their own applications in aviation, they do not serve the primary role that polyester does in the Poly-Fiber covering system. Understanding this material and its properties helps in the proper application and maintenance of fabric coverings on aircraft.