"Michael Daly" <mikedaly_at_magma.ca> Subject: Re: [Paddlewise] Dead Reckoning Accuracy On 5 Jun 2004 at 13:51, Bob Volin wrote: > The acetone does remove permanent ink, but it would be more > conservative to use a grease pencil (china marker) for the same > purpose. There is a "china pencil" available from drafting supply stores..."Aquarellable" or somesuch. It works well for writing on wet surfaces, or when wet itself. Easier to clean than a china marker or grease pencil. Mike wrote: >I agree - acetone is nasty stuff and I don't use it at all. Even for epoxy work, I prefer to make do with vinegar than use acetone. You thin epoxy with vinegar, or just for cleanup? >Divers use plastic boards that can be written on under water. That is also a possibility. One of these days, I'll find out what the plastic is and find a cheap source. Ditto the type of marker. Here's the secret: it's rough. Rough enough to scratch the tip of the pencil and leave a mark. Hard enough that the pencil doesn't scratch or groove the slate. Cheap source: Lexan/polycarbonate works pretty good (scuff it with sandpaper first). Fiberglass also works good--there's a fiberglass reinforced panel on the market that is often used in fast food and convenience store restrooms--the back side of this material makes a great water slate. The front side would probably work well, too, if you sanded off the glossy pebbled surface. Diver's "secret": when elbow grease or thumb oil isn't enough to remove days' worth of writing on the slate, use toothpaste. Rob G wrote: >A grease pencil works really well and comes off with minor elbow grease and water. I suspect this is why they're called "grease" pencils? Shawn *************************************************************************** PaddleWise Paddling Mailing List - Any opinions or suggestions expressed here are solely those of the writer(s). You must assume the entire responsibility for reliance upon them. All postings copyright the author. Submissions: PaddleWise_at_PaddleWise.net Subscriptions: PaddleWise-request_at_PaddleWise.net Website: http://www.paddlewise.net/ ***************************************************************************
On 7 Jun 2004 at 7:15, Shawn Baker wrote: > You thin epoxy with vinegar, or just for cleanup? Cleanup. I don't know what vinegar would do to thin epoxy, but I wouldn't recommend it offhand - since it reacts with uncured epoxy afaik. Mike *************************************************************************** PaddleWise Paddling Mailing List - Any opinions or suggestions expressed here are solely those of the writer(s). You must assume the entire responsibility for reliance upon them. All postings copyright the author. Submissions: PaddleWise_at_PaddleWise.net Subscriptions: PaddleWise-request_at_PaddleWise.net Website: http://www.paddlewise.net/ ***************************************************************************
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