Metal Effects Primer (formerly Acid Blocking Primer) (AM203)

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.