Recently, the use of certain environmental-friendly waxes or "semi-hard coatings", used by barge fabricators to protect the internal void walls and floors of marine double-hulled steel barges from corrosion, have fallen under scrutiny by some barge owners/operators. It is believed that certain paraffin wax coatings act as a food source for certain living corrosive microorganisms. These single-celled organisms are associated with a phenomenon known as Microbiologically Influenced Corrosion (MIC) that can cause localized pitting and eventually leaks in steel barge voids. This following examines the biological and chemical research that has recently been performed on the Jotun Paints, Inc, "beeswax" coating by two independent laboratories.