This research investigated the usage of cuprous oxide powder as filler for epoxy in marine coating industries. The basic formulation consist powder, pre-polymer, and curing agent. main manipulation variable this is quantity added into resin, which varies from 2, 5, 7, 9, 11 per hundred gram resin (phr). Polyether (amine) was used agent at equivalent molar ratio. Mechanical stirring to achieve d...