Originally Posted by rourkeh
What are the practical benefits of a hard paint over a softer paint?
That will get you as many responses as what anchor
My $0.02 is that ablatives are a better choice, as scrubbing will bring out new biocide, AND ablatives don't build up year after year, eventually necessitating a complete sandblast or sanding
of all the paint from the hull
. Also in heavy fouling waters, the ablatives (with scrubbing) work better
That said, the hard paints "leech" biocide out from the matrix at a fairly even rate, are typically harder and yes last longer.
Bottom line: If you want superior anti-foul for a shorter time in heavy growth waters, go ablative..... If you are mostly in low fouling waters, and hate to scrub, go hard.
My boat in Nokomis has ablative and I get a year or so between haul outs, but an untreated hull will be solid covered by barnies in 3 weeks there. In Key West
, there is mostly only "soft" fouling... there I use Trinidad and get 3 years with regularity.