Dulux Acratex® Roof Primer MX PLUS is a quick-drying, grey water-based primer that provides good adhesion to new or weathered galvanised Zincalume®, Zincanneal®, aluminium and aged Colorbond®. Formerly known as Roof Primer MX. Available in Trade Outlets only, applying this product may require professional painter assistance. Check your local stockist for details.