Clean the surface of the Formica thoroughly with soapy water to remove any dirt or grease from the counter top. Dry the counter after wiping with a clean hand towel.
Roughen the surface of the Formica by sanding firmly with 100-grit sandpaper. An electric sander is not required for sanding but will speed up the process. Remove any dust or particles created by the sanding.
Apply an alcohol-based primer to the Formica with a paint brush. Clean the brush with denatured alcohol after painting to remove all traces of the primer.
Open the can of oil-based metallic paint and stir well to ensure that the color is consistent throughout. Apply the metallic paint to the Formica with a paint roller. Let dry.
Apply a second coat of metallic paint and allow to dry completely before you continue.
Apply two coats of oil-based clear polyurethane to the counter top with a paint brush, allowing each coat to dry completely before you apply the next.
Sand the dry second coat of polyurethane with 400-grit wet/dry sandpaper used wet. Dry the counter with a towel.
Apply a third coat of polyurethane and allow the counter to dry. Sand one final time with the wet 400-grit sandpaper.