Have you considered PAINTING it ?
I know I can hear the laughter & cries.
Nyalic is a clear coat designed to protect raw metals !!!!
It has a life span 5yrs plus
Clear coat uv resistant will not yellow
Will hose or wipe clean leaving a gloss finish
May not last this long on handrails ?
Also good for paint
Extends the life of paint
by protecting it.
Easy to apply
In my opinion worth it
Don't believe me GOOGLE
May I suggest that NOW is the best time to do this
While your boat is new
Do the all the gel coat as we'll
You won't have to pay people to polish it
Just hose and wipe down
PS No connection or interest in this product
Except as a user of NYALIC