I suggest you refer to International's data sheet and follow that rather than anything else Here
They say 5 coats with between 5 hours and 6 months between coats at 15C (If the maximum time is exceed then sand it with 180 or 220 grade paper) At 15C it is touch dry in 2hours. That does not seem to be a question of applying the next coat while the previous is still tacky!
Times are also given for applying antifouling paints. 5 hours to 9 hours as far as I can see.
But read it all for yourself.
-------------------- Old Chemists never die, they just fail to react