[C320-list] bottom paint

[Jane & Ken]

Chris,
   I have always been against any sandblasting of the bottom ----UNLESS----it is to a small blister area that needs removing.  If you have any blisters, they may need to dry out for several days before any repairs are done.  The original bottom barrier coat (to prevent blisters) would be damaged with sandblasting.  
   You did not mention the hull number, but the blister protection method used by Catalina has changed over the years.  I had three small blisters on my hull #219 in year number three (1997)---factory warrantee assistance was more expensive than me doing it myself and no futher problems have occurred.
   Other than the sand blasting part, the yard's approach seems reasonable--12 years is a long time for the original bottom paint.
Ken  OBUOY  #219

--- On Tue, 11/17/09, Chris Descher <cdescher at cedtulsa.com> wrote:


From: Chris Descher <cdescher at cedtulsa.com>
Subject: [C320-list] bottom paint
To: c320-list at lists.catalina320.com
Date: Tuesday, November 17, 2009, 12:41 PM


I'm about to have the first bottom job done on my 12 year old, freshwater
boat.  Without much in the way of available options on who will do the work
and how it will be done, I really just need to decide whether the estimate
that I've received is reasonable.  The yard will haul it out, sand blast the
bottom, then pressure wash the bottom and hull sides, prime the bottom with
a light coat of bottom paint, then go back with two heavy coats of
anti-fouling bottom paint, and then apply a third coat along the water line.
They use Petit Un-epoxy Plus bottom paint.  Any blisters would be dealt with
separately.

Is there anything about this approach that seems wrong?

Thanks,

Chris Descher