I can second this advice.
I raised a similar question last winter whilst preparing to paint a boat for
the first time and not too keen on the prospect of cost involed. Following
some useful advice received through this NG I opted for Dulux Weathershield.
I used two undercoats and three top coats. I also thinned the top coats
(about 10% whote spirit) - makes application easier and the brush marks run
out better.
Been back in the water since March and pleased with the result. One
observation though - it appears to hold the grime (I'm on a river bank
mooring) too readily. I think it would have been wise to give it a good
polish with several coats of silcone polish.
Andy
"Tim Christian" wrote in message
news

You might like to check the archives of this Group on Google. This is a
subject that has been covered many times.
I paint my boats with a good household paint like Dulux or Crown. A good
sanding ensures keying. Use slightly thinned paint: both undercoat and
gloss. Two coats of each with a light rubdown between coats. 'Thass Moyne'
was painted this way over two years ago, has been in the water ever
since -
and the paint looks like new.