KEY UNIVERSAL HIGH TEMP COATING is a one component, moisture cured polyurethane coating designed primarily as a high termperature protective coating for exterior metal surfaces. KEY UNIVERSAL HIGH TEMP COATING may also be used as a primer for all Key MMA Systems and Key Vinyl Ester Systems and has excellent adhesion to sound, tightly adhered rusty steel, other marginal or poorly prepared metal surfaces, and properly prepared concrete. KEY UNIVERSAL HIGH TEMP COATING must be used as a barrier primer applied in one or two coats as needed to achieve a pinhole free finish when applying Key MMA or Key Vinyl Ester materials over an existing epoxy basecoat. Contact Key Resin for recommendations.