UV-Cure Gelcoat (White, Outdoor)

This white UV-cure gelcoat is a photoinitiator-activated polyester or acrylate-based formulation pigmented with titanium dioxide and enhanced with UV stabilizers for use in outdoor composite applications. It delivers the production speed advantages of UV cure technology while providing weather resistance and color stability for exterior applications including roofing panels, cladding, and outdoor furniture. UV cure at 100 mW/cm² (365 nm) achieves full surface cure in 5–30 seconds, enabling high-throughput production. The titanium dioxide pigment provides full white opacity at 0.1–0.15 mm film thickness. HALS and benzotriazole UV absorbers are incorporated into the formulation to protect the cured film from photodegradation and chalking under outdoor conditions. Pencil hardness after UV cure is 2H–3H. The product is applied by curtain coat or roller coat at 100–200 g/m². Low styrene or styrene-free formulation available for production environments with strict VOC controls. Compatible with standard polyester and vinyl ester laminates as the backing structural layer in continuous panel production.