Originally Posted by blt2ski
IE "generally speaking" an ablative can go over other brand ablatives. Do not put hard over ablative, but ablative can go over hard.
This is a wive's tale. Most copper-based anti fouling paints are compatible with one another, regardless of whether they are hard or ablative types. Hard paints can go over ablatives and visa versa. It's all in the preparation.
Pettit Paints compatibility chart
Interlux Paints compatibility chart