Innovative Resins - Pigmented Gelcoat for Fiber-Reinforced Composites

Gelcoat, sometimes referred to as 'Gel Coat,' is essential for providing a high-quality finish on the visible surfaces of fiber-reinforced composites. This material is predominantly composed of thermosetting polymers, typically utilizing epoxy or unsaturated polyester resin formulations. These resins are applied in their liquid form to molds, where they cure into crosslinked polymers, forming a durable surface layer. They are commonly backed by thermoset polymer matrix composites, which often incorporate mixtures of polyester resin and fiberglass. However, for applications that demand enhanced specific strength, such as in high-performance settings, epoxy resin is used in conjunction with carbon fiber. Gelcoats are utilized in various sectors like mass transit, hand lay-up processes, and even stone veneer applications due to their resilience and excellent finish quality.