Can I use epoxy primer over gelcoat?

Yes, you can use epoxy primer over gelcoat, but proper surface preparation is crucial for adhesion. Ensure the gelcoat is clean, free of contaminants, and lightly sanded to create a rough surface for the epoxy to bond effectively. Additionally, applying a compatibility test on a small area is advisable to ensure the two materials adhere well together. Always follow the manufacturer's instructions for best results.