I've used both Rustoleum zinc primer and Barnacle buster over clean metal with OK results. Retention was good; effect lasted less than a year, better than nothing. This fall I switched to Pacifica Plus by Interlux.
It's been popular for several seasons with the commercial Waterman in the boatyard I use, for their running gear and crabpot cages (protects the propeller from pot lines). Many still use Propspeed on the propeller. For me, the Propspeed was ok on the propeller but worthless on the skeg and cutlass bearing shaft tube (I don't go fast enough for it to work).
My bottom was looking kind of ghetto when I splashed yesterday. Only the bottom scrubber will see it now though.
I'm tired of fast moves, I've got a slow groove, on my mind.....
I want to spend some time, Not come and go in a heated rush.....
by The Pointer Sisters