Lauer DuraCoat Aerosol features unique can-within-a-can technology that provides the hardener right inside the can. No more measuring & mixing, just release the hardener and shake. The DuraCoat provides protection against rust and corrosion. This finish can be applied over bare metal, parkerizing, anodizing, and bluing.FeaturesGood for up to 4 weeks after activationEach 12 oz aerosol can is enough for 2-4 firearmsNo baking or preheated requiredNoteTo properly use the Pink Lady color, a base coat of White must first be applied.