Historically highly pigmented metallic zinc primers have been selected for highly corrosive environments such as the offshore and petrochemical industries. These primers gave excellent performance in accelerated corrosion tests and this correlated with what was seen in the field. The primer described in the paper has a long track record in offshore maintenance and repair, and for the first time it has been used in a new construction project for an offshore installation in the Caspian Sea. Until recently conventional anti-corrosive pigments have been unable to meet the performance levels of zinc rich primers in the offshore and petrochemical environments. This paper describes the evaluation of a metallic zinc free anti-corrosive primer which has been formulated to meet the requirements of today’s aggressive marine environments, and come close to the performance of certain metallic zinc primers.