Can I apply TotalBoat Halcyon varnish on top of a vinyl graphic? Annette DiOrio May 05, 2021 19:14 Updated Yes, you can apply TotalBoat Halcyon water-based marine varnish on a vinyl graphic. To protect the vinyl and make sure it doesn't lift, apply at least 3-4 coats of Halcyon varnish, as directed. Related articles If TotalBoat Halcyon varnish freezes, can I still use it after it thaws? Is it OK to apply TotalBoat Gleam 2.0 varnish on top of Minwax® stain? Can I apply TotalBoat Lust varnish on top of a lacquer finish? Is TotalBoat Lust varnish compatible with Minwax® stain? What's the difference between TotalBoat Danish Teak Sealer and TotalBoat Teak Oil? Comments 0 comments Please sign in to leave a comment.