Durepox is an epoxy urethane with amazing adhesion to carbon fibre, fibreglass and wood, which can be applied without sanding between coats. While developed as a primer, Durepox is used as a topcoat on racing boats as it has excellent water barrier properties and exceptional weather stability. Durepox was tested by the Otago Flume Laboratory and results showed that its satin finish gave a 15% less drag coefficient than a high gloss surface on rowing skulls. On a practical level, painters admire its fast dry properties and sandability after three hours with no shrink back.
