Yes, you can apply BlackTop to epoxy primers, DTM primers, and body fillers that are fully cured. BlackTop will adhere well to epoxy primer, DTM primer, and body fillers.
PRO TIP: If the sheen of the surface to be coated is glossy (shiny), then lightly scuff the surface with 320 grit before you apply BlackTop for enhanced adhesion.
Please check out the complete BlackTop Application Directions before you begin your project.