Paul:

Missing information includes: Bottom or Topside painting? Wood,
Fiberglass, Steel, other? In most cases, remove the word 'probably' in
the sentence with the word primer and you'll be fine. This would be
mandatory for a two-part (i.e. polyurathane) paint system, and lilely
just as necessary with one part polyurethane as well.

There's a ton of useful information at:

http:/www.yachtpaint.com

Mike Worrall
Los Angeles