Dura-LITE® offers exceptional mechanical strength as an FRP gutter solution. It is resistant to both acid and alkali corrosion, UV light, and is easy to install. Manufactured using a full-body molding system, the structure incorporates thermosetting UV-resistant resin and high-strength woven roving for enhanced reinforcement.ionally, we manufacture the gutter based on the needs of customer. In other words, the design and production of the gutter can be customized according to the requests of our customers.