Dulux Trade Metalshield Zinc Phosphate Primer is a high performance, high build primer with excellent rust inhibiting performance. It is suitable for use over hand-cleaned iron and steel as well as blast-cleaned surfaces. Applying this single-pack system with Metalshield Gloss or Satin will deliver up to 8 years of metal protection. Application is by brush or roller only. Stir thoroughly before use. It has a matt finish, covers up to 13m² per litre, dries in 2-3 hours, and is recoatable in 7 hours. It is a solvent-based product.