Unsaturated Polyester Resin for Marine

The balanced viscosity and fast gel profile of Polyester Resins for Marine applications support both hand lay-up and spray-up processes in boat building and marine composite fabrication. Marine UPR Resin can be used in speed boats, fishing vessels, kayaks, pontoons, hull and deck laminates, jet ski bodies, GRP marinas, docks, yacht interiors, composite lifeboats, ocean-surface structures, wave barriers, and corrosion-resistant marine storage tanks. The resin is suitable for both small craft production and large-scale industrial shipbuilding lines.

Composition typically include isophthalic or vinyl-ester modified UPR base resin, styrene monomer, cobalt accelerator, MEKP initiator, thixotropic agents, air-release additives, anti-osmosis packages, UV stabilizers, low-shrink modifiers, and marine-grade pigment carriers. Formulated for high glass-fiber content, it delivers strong mechanical performance and long-term laminate integrity.