Metalshield Gloss Finish from Dulux Trade is specially formulated for metal with a quick drying solvent-based formulation that can be overcoated within 4-8 hours (depending upon conditions). It provides lasting protection against corrosion on metal substrates such as railings, garage doors, lift shafts, staircases and emergency exit routes. Applying our straightforward, single-pack system: Metalshield Zinc Phosphate Primer from Dulux Trade 2 coats of Metalshield Gloss Finish from Dulux Trade will deliver up to 8 years metal protection.Touch Dry: 1-2 hours. Drying Times Recoat: 4-8 hours. Practical Coverage On smooth surfaces of average porosity a litre of paint is sufficient to apply one coat to an area of up to 15m2.