The soda blast operator turned up the pressure and rushed through the job. The bottom of my boat looked like ripples in the sand at low tide. The bottom was completely wavy and took three days of sanding to get right. He also blasted two inches above the waterline and never blasted the trim tabs - too lazy to disconnect.
In contrast, the two other blasters we use on a regular basis (one from Brunswick, Maine and one from Kittery, Maine) do an excellent job. When they are done, the bottom is fair, burn through is non-existent or minimal and the profile left for barrier coating is next to perfect.
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