... , anti-corrosion, fireproofing, accurate cross-section size, non-moisture material, customizable length cut, simple to install and long ... which would need long-term natural lighting. FRP Base Material, Ashland Gel Coat, External Layer Melinex 301 Film, ... Layer Treatment. Generally, Melinex 301 provides the FRP material flexibility, protection against water decomposition and self cleaning functionPart ...