Bottom Paint for Trailer Sailor?
I recently bought a Catalina 22 which is in winter storage right now. It's been trailer sailed for the last 18 years and hasn't had any new bottom paint. Currently the bottom has streaks of old red paint on it that comes off if you rub it (along with the gelcoat maybe, the boat is a 1975). Next year I am going to use it for daysailing, the occasional overnighter, with a few trips extending 3-7 days. I want to paint it myself (i've read up on jacking it up on the trailer safely, etc.). My question is, whats the cheapest way to protect the hull of the boat so I can use it for years to come?
Should I use a coat of antifouling? Or would a barrier coat be better? I've been scanning the interlux products, I just can't decide whats best for this application.
I appreciate all opinions and thoughts, thanks!