Can I apply TotalBoat Gleam 2.0 spar varnish to a brass surface? Annette DiOrio August 16, 2021 14:09 Updated Yes, you can apply TotalBoat Gleam 2.0 varnish to brass to protect the surface, but typically, lacquer is used to protect bare metal. Related articles Is it OK to apply TotalBoat Gleam 2.0 varnish on top of Minwax® stain? After sanding TotalBoat Halcyon varnish, what can I use as a solvent wipe to remove residue? Can a surface coated with TotalBoat Gleam 2.0 varnish be submerged underwater for an extended period? Can I recoat TotalBoat Penetrating Epoxy while the previous coat is still tacky? For an exterior application, how often do I need to reapply TotalBoat Halcyon varnish to maintain the coating? Comments 0 comments Please sign in to leave a comment.