Are these compatible? 2 base coats Rust-Oleum Matte Hammered Black spray, product 300607. Then 2 top coats of Rust-Oleum Metallic Cobalt Blue 7251830.

Hi Andy, thank you for reaching out! Yes, both of these products may be applied together, just keep in mind the recoating period of applying coats within 1 hour, or after 48 hours. This means that multiple coats may be applied within one hour of each other, usually allowing 10-15 minutes between coats works well. Once the last coat has dried for one hour, it is necessary to wait a minimum of 48 hours before applying the next coat to prevent a solvent wrinkling reaction. - Rust-Oleum Product Support 2