Hammerite Red Oxide Primer is specially formulated for use on both bare and rusty iron and steel. It is a high performance primer, with an anti-corrosive formulation. Red Oxide Primer is suitable for both interior and exterior use. It provides a smooth protective base for overcoating, and requires minimal sanding. It is quick-drying and a top coat can be applied after only 6 hours. Ideal for gates, railings and metal drainpipes.HMMREP250 Red Oxide Primer in a 250ml tin.