Paint technology has been changing. Bottom paints also relate to the kind of sailing you do and the waters you sail in.
I had a chat with the yard manager who is a racer
, an old timer, a broker and an all around marine
expert and good guy. He's in Long Island Sound
First, any boat which is racing
in those waters will have to have a diver go down at least 3x per season to remove slime. If you use an ablative paint unless you are moving A LOT, slime will coat the paint and it will not ablate. No matter what paint I use it ALWAYS accumulates slime and I sail every weekend in the season.
He recommends not more than one coat of ablative paint believing that it's all you need for a season.
He mentioned a new ablative that he says interacts with salt water
and does not require movement. Sounds like it like it sloughs off sitting there, but I don't get it and don't recall
product it was.
Consider this: The costs assoicated with painting include:
Hauling and blocking
Scraping and sanding
preparation and materials
masking the waterline and materials
paint and application materials
For a 36' boat this adds up to quite a lot if you put 2 coats of expensive paint on. Let's call the whole thing $1,200 - $1,500.
If a diver costs about $100 per scaping, you could have one down every week for more than 3 months or every other week for 6 months!
No wasted time out of the water (diver can put the zincs on too)
No added weight of paint. No fouling the water! or the land environment
from prep work
No anxiety about the yard jerking you off
create work for local diver and not for Interlux
get your transducers cleaned regularly and regular inspections of your bottom!
Think about it. It makes lots of sense not to paint your bottom IF it costs that kind of money
and you can get a diver for the same amount.