TotalBoat Halcyon Water-Based Marine Varnish can be applied over phenolic resin varnish. Sand the existing varnish with 220- or 320-grit sandpaper, clean the surface thoroughly, and then apply Halcyon.

Because phenolic resin varnish formulations can vary by manufacturer, we cannot confirm compatibility with every product. Always perform a test application first to confirm proper adhesion and the desired results.