nC Corrosion Passivator - Primer 2-in-1 STOPS RUSTand is now available for the private market. It is a highly penetrating metal treatment fluid combined with a film-forming sol-gel technique. Passivates new, blasted or corroded metal. It is applied with roller, brush or spray. It stops and prevents the corrosion process and is afterwards CAN BE PAINTED OVER IMMEDIATELY. By forming electron pairs, particles form a chemical bond with the metal behind the corrosion. This means that oxygen cannot reach the metal. So no more rust! Remains active for 2 to 10 years, depending on whether nC Corrosion Passivator - Primer 2-in-1 is painted over.