What is the most common synthetic fiber used in life safety rope?

Nylon is the most common synthetic fiber used in life safety rope due to its excellent strength-to-weight ratio, durability, and elasticity. These properties make nylon ideal for applications where life safety is critical, as it can absorb shock loads effectively during falls or sudden impacts. Additionally, nylon's resistance to abrasion and UV light helps ensure the longevity and reliability of the rope in various environments.

Hemp, while historically used for ropes, does not provide the same level of performance and durability as nylon. Teflon is primarily a coating material and not used in rope construction, whereas vinyl is not suitable for high-strength applications like life safety rope. Nylon's combination of strength, elasticity, and resistance to environmental factors makes it the preferred choice for life safety situations.