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post #12 of Old 02-17-2013
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Re: Best sander for bottom sanding?

I'm a little surprised that all the respondents to the thread speak only of dry sanding. I have anti-fouled my own boats for nigh on 30 years and have never dry sanding one square inch.

To be more specific, in the marinas, both in South Africa and here in New Zealand, dry sanding is pretty much banned because of the dust it generates and only wet sanding is permitted. Is there some rule in your areas that prevents wet sanding?

So my boats get wet sanded with a 100 grit water paper on an oscillating pad attached to the end of a broom stick that has a constant water feed to the paper via a tiny (mini irrigation type) hose pipe. If it sounds complicated, it is not, actually very simple.

I can reach almost all surfaces without stooping under the boat - very easy on the body. And I flat down the whole of my 44 ft boat for an anti-foul repaint in about 3 hours without any assistance and the finished job is always excellent.

Cost to rub down? Well the initial cost of the sophisticated equipment described above is about $30. From then, each rub down costs about $18 for the water paper. And water paper doesn't clog - it just wears down after a while.

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