Can I apply latex paint over an oil base, or vice versa?
You cannot apply latex paint over an oil base because it will not adhere properly and will peel or scratch off easily. In general, you should always put an oil-based paint over an oil base, and water-based paint over a water base. Although you can paint oil over latex, over time it will crack. The only exception to these rules is alkyd primer. Most alkyd primers are formulated to go under both oil and water bases.
