Composite Boatbuilding

Coosa is structural — transoms, stringers, deck blocks, anywhere you'd traditionally use marine plywood. Divinycell PET is a sandwich core — hull and deck panels where weight matters and the load is distributed. They complement each other, they don't compete.

Most marine epoxies bond to both. Polyester resin works with Coosa but check the Divinycell PET technical data sheet for compatibility — some PET foams need vinylester or epoxy for full bond strength.