The standard coating structure in the fiber optic industry is made out of two layers (typically known as primary and secondary coatings) of standard acrylate materials able to withstand up to +85°C of temperature (continuous exposure). The coating enables the fiber to withstand the mechanical rigors of manufacturing, testing, cabling, and installation, allowing the waveguide to be deployed over long distances without breaking or suffering signal loss. Coating materials are carefully formulated and tested to optimize this protective role as well as the glass fiber performance. Glass fiber's performance and protection have been optimized by a carefully formulated coating material. The key performance of optical fiber coating. Optical fiber coatings/buffers play an important role in protecting the fiber from its intended environment.