Blackfriar Red Oxide Metal Primer protects ferrous metals such as steel and iron with this special water-resistant formulation. It resists rust and is anti-corrosive. Suitable for interior and exterior use. Application method; brush, roller & spray. Coverage: 14m²/L/Coat.Touch Dry: 2-4 hours.Hard Dry: 3 days.Recoatable: 16 hours.