I have a reputable boat yard in the upper Chesapeake that has proposed to blast my boat's bottom for a very attractive price
. It was a while into the discussion before I learned it was to be sand blasting, not soda blasting.
They assured me that they had been doing sand blasting to remove bottom paint
for years, having abandoned soda blasting because of the cost. They showed me a recently blasted hull
, prior to any over coating, and the surface looked acceptable.
The Conventional Wisdom seems to be all against sand blasting... but all the negativity seems to be apocryphal. Can anyone tell me of their first hand
experience, possitive or negative, with sand blasting, noting age and condition of the boat's gel coat (and bottom paint), the experience of the operator, and the grit size used?