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.