The bottom paint is copper based, Amercoat.
My coatings were from Devoe Coatings, now International, and were basically what was commonly used on tugs, fishboats, etc. The yard I had it done at, alas now gone, knew what they were about as they did lots of commercial stuff also. I was peanuts although they didn't treat me as such.
At home I have the actual product names although that may now be of not much help as names and product formulations change. The zinc coat was Devoe Cathacote if memory serves., can't remember the epoxy and the bottom paint was Amercoat ABC