How do I safely refinish a wooden door with old DuraSeal on it?
DuraSeal contains aniline dye. Any finish with an aniline dye will bleed through a water base finish. To transition between these types of finishes, it takes a multi-step approach. Begin by fog spraying a low-solids coating like shellac. Allow this to dry and then fog spray Safecoat Transitional Primer, followed by a 2 coat fog spray of shellac and then another single coat fog spray of Safecoat Transitional Primer. This layered approach isolates the aniline dye in the layers and eliminates its migration. Spray coats must be very thin as too much material overly activates the dyes causing them to float to the surface promoting the bleed through problem. Once the priming phase is complete, applying a couple of coats of Safecoat Trim and Door Enamel should finish the job nicely.