MM Metal Effects Blocking Primer 4oz

4oz for all your smalls!
A unique water base, acrylic primer designed to block Patina Aging Solutions & Rust Activator from reaching the metal or wood surface chosen as a substrate. Other primers cannot be used because they allow the Patina Aging Solutions & Activators to penetrate through to the substrate. This will disrupt the desired patina color and damage the finish by bringing rust or tannic acids to the surface.