Originally Posted by BentWheel
Ablative paint.. Ok thank you david
i am thinking then that it will wear down to the original (HULL) paint in some places sooner than others and when i see that happening do i need to remove the old before repainting?
is there anything i can do to prolong the life of it?
As long as no "hard" growth is attaching the paint has some life left. Slime and such is normal and speed of build up depends on where the boat is and how often and fast you sail. More sailing means less leaning for me. Ablative paint "comes" off over time and you are right you will eventually see under coat showing through. The leading edge of the keel
and the water line wear faster and when applying two extra coats are usually applied in these areas,
with a brush or scotch brite will definitely accelerate the removal
of the paint. The carpet, soft brush and even power wash is preferred by me but I do use "worn" scotch brite a lot.
Unless you are racing
you might be happy to live with a coating of slime as long as there is no hard growth - i.e. plants or barnacles
. If you preefer you can dive on the boat with a snorkel but you will likely only get the hull
and not the keel
or a hookah system will give you more time to do a better job.
As far as mix and match. In general a soft paint can go over a soft paint or a hard paint. Hard paint can only go over hard paint. Hard paint is prefered by racers and those who dry sail as it will last a long time out of the water.
When you see the next layer or are cleaning
a lot (weekly or so) t's time to prepare for a bottom job. In your case I recommend stay with soft paint. Haul out
sand smooth and reapply 2-3 coats on hull and 4-5 on keel leading edge and waterline.
We are very fertile here and I get about 18 months with Micron Extra blue paint.