Though I have a 1987 O'Day 192, this question probably applies to any boat. I have the light blue ablative paint that was applied before I became owner. A light gray layer is showing through that I assume is maybe a barrier layer. I'm not sure though. I had contemplated using the Star 10 stripper but not sure if that would also remove the 'barrier' coat. The sales person at West Marine recommended a paint that he said would require the boat to be put in the water not later than 16 hours after application. My question then is: (1)Is it probable that the gray is a barrier coat? Is there an O'Day owner out there that can give me a better idea as to whether the gray paint layer is a barrier layer? (2)Would the Star 10 or other paint removers take off both the barrier coat and the ablative coat? (3)Are there other paints that can be applied and can be left out of the water for a longer period than 16 hours? (4)Would it be better to just sand instead of using a stripper? Thanks, Bill