I have two coats of primer on one side of the Didi 40 Cr and one on the other. A younger person might manage a coat a day but with the sanding between coats all I can manage is one side a day. I have a good photo that shows the progression of first one coat of Interprotect, then some spot filling, then an aggressive sand back with 60 grit paper and finally a second coat.
The second coat requires spot filling too and then it will be sanded back with 80 grit. The third coat will be sanded back with 120 grit and by that time I hope all the spot filling will be finished. Between the second and third coats I have some International Microsurfacer on order for final fairing of the round bilge sections. That won’t arrive for a week so I might get back to some real construction. While we were away sailing in Canada the sailmaker modified an old mainsail off Passion by adding a 900 mm deep panel to the foot. It is only 4.7 metres on the foot compared to the planed 5.5 metres but it will be enough sail for cruising for Elaine and myself.