Can you apply epoxy over paint?

Epoxy can be used on fully dry painted surfaces.

For latex or water-based paint: Wait at least 24 hours after you finish painting with one of these types of paints

For oil-based paint: Using epoxy on oil-based paint is more difficult. It's possible, but oil-based paints take a long time to fully dry.

• You'll need to apply 3 coats of oil-based polyurethane to seal the surface before applying a typical seal coat of our epoxy.
• Caution: if the oil-based paint isn't fully dry, and you attempt to apply epoxy to it, there's a good chance the epoxy will be unable to adhere to the surface, and it may peel off months later.
• All epoxy has a slight amber hue; it is only noticeable when poured onto something white. This is the same for oil-based polyurethane.

Note: When using epoxy on a painted surface, you should still do a seal coat like normal before applying your flood coat.