[Rhodes22-list] keel CB issue

[Mary Lou Troy]

Hi Andrew,
Can't tell from the pics - are you certain the problem is in the 
fiberglass or is it just pittting in the paint? Obviously would 
require different repairs.

re the bottom paint and growth: Are you in fresh water or salt? I 
forget. Different growth patterns I think. I was once told that you 
tend to get less growth where there is no light - i.e. in the 
centerboard trunk or on top of the board. I have no idea if that is 
the reason but it has certainly been true most years for us here on 
the Chesapeake. But not all.- one year we had all kinds of stuff 
including baby crabs in the CB trunk. They would come up when we 
pulled the CB pennant. Also depends on what paint you use. Some is 
good for multiple seasons. Others lose effectiveness after the boat 
is out of the water for a few weeks and must be prepainted. If you 
are using a multiple season paint and have had no problems I wouldn't 
worry about it.

Mary Lou
1991 R22 Fretless
Rock Hall MD


At 04:54 PM 5/31/2011, you wrote:
>Dear List - I need a little help on the keel fiberglass deterioration at the
>centerboard trunk. There is a area that looks abraded and pitted to about
>1/4" depth on the starboard side of the keel nearest the bow immediately
>adjacent to the CB trunk opening. I attach 2 pix to illustrate. I suspect I
>can grind out the pitting with a belt sander and fill with epoxy and then
>bottom paint.
>Does anyone know if the fiberglass is sufficiently thick at this point? Any
>advice is welcome.
>The pictures clearly show that there is no red bottom paint on the top of
>the centerboard, yet there is no marine growth there. This is in water when
>the boat is afloat, so why ? is the dark paint bottom paint?
>There was very little marine growth in the trunk itself, I scraped at it
>with a thin wood slat and knocked out some dust and debris like dried algae
>and tiny barnacles. The CB pivots freely. How often do any or all of you
>bottom coat the interior of the trunk? Stan told me to do it annually, but I
>am not going to this year as it is still clean.
>  Thanks for any input!
>Andrew
>sv Carmen
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