CorrVerter® MCI® is a single component, fast drying, water-based primer that converts rusted surfaces to a passive layer. It provides long term corrosion protection by itself or by top-coating for extended performance. CorrVerter® MCI® is recommended for application to rusty or poorly prepared steel surfaces where further corrosion protection is required and good surface CorrVerter® MCI® contains a unique formulation of chelating agents combined with a high solids waterborne latex with extremely low water vapor permeability. The combination of these materials converts the surface rust into a hydrophobic passive layer, offering a unique formulation primer with excellent protection against rerusting of metal surface preparation is difficult to achieve. Formulated to penetrate and eliminate rust as well as to protect bare metal from further rusting. CorrVerter® MCI® contains a unique formulation of chelating agents combined with a high solids waterborne latex with extremely low water vapor permeability. The combination of these materials converts the surface rust into a hydrophobic passive layer, offering a unique formulation primer with excellent protection against rerusting of metal surface.