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From: Doug Lloyd <dlloyd_at_bc.sympatico.ca>
subject: [Paddlewise] Random Orbital Sanders
Date: Mon, 10 Jan 2000 18:26:11 -0800
There was a thread recently about these wonderful, time saving devices. 

I was a bit concerned over a comment made. I am only getting to replying
now - been busy. Someone had suggested the random orbital sander be used as
it cut fast, especially when taking down gelcoat before redoing a hull. In
my opinion, do not do this. You do not want to remove your gelcoat. Smooth
it out after years of abuse, yes, but not down to the fiberglass. If you
are recoating the kayak with new gelcoat, it is a thin, poor substitute for
the original, and does not bond as well (anything put on after the kayak
isn't "green" anymore, never bonds properly). You don't want to remove your
original protective layer of gelcoat.

You will also expose thousands of pin holes if you sand gelcoat too much.
BTW, a roller is a good way to "brush" on new gelcoat to an old hull after
surface preparation. With good wet and dry sanding and buffing, you can get
a fairly decent looking hull again.

Also, random sanders without variable speed (and even with VS) have a nasty
habit of spinning way too fast when not under load, thereby turning
momentarily into a "grinder" as you lower it onto your work surface. Be
careful.

BC'in Ya
Doug Lloyd 
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