Galvanizing is the most durable "finish" that can be applied to metal that
is going to be used in an environment that is rust friendly.(i.e.,salt
water) Don't paint zinc, just leave it alone and let it do it's anodic
job.

"Gary Warner" wrote in message
...

I asked a simmilar question in a thread titled " What happens if you paint
a
galvanized trailer??"
that was started on Oct 18, 2002 here in rec.boats. If you Google it
there
is some interesting information and ideas in that thread.