Prepare metal surfaces for powder coating. These primers create a base layer that bonds with your top coat to extend the life of your powder coating. Use a powder coating sprayer to apply these primers directly to unpainted metal and cure in an oven.

Epoxy primers are good general purpose primers for most metal.

Zinc/epoxy primers have excellent corrosion resistance, so they’re often used to protect metal that rusts easily, such as steel and cast iron.