"Evan Dallas" <evand_at_pensionresourcegroup.com> wrote: >I have some Titan brand marine epoxy with the fast hardener. Even in a 60 >degree room, I find that if I mix much more than about 3/4 ounce, after a >few minutes, the stuff goes into exothermic mode, producing a chain reaction >where it starts to bubble and almost immediately harden. Evan, three suggestions: 1. Mix in a larger container with a broader bottom, using just one side of the container (a square bottomed one is good for this -- use a corner), then as soon as it is mixed, spread it out over the entire bottom of the container. The greater the surface area, the longer the pot life. 2. Borrow an old triple beam balance and weigh out your ingredients, to make smaller batches, just the amount you can use before the exotherm. Measuring volumetrically, it is hard to get precise ratios in small batches. Is this a 2:1 epoxy? If so, then the weight ratios are probably close to 100:44 :: resin:hardener 3. As soon as it is mixed, slap it onto the work surface and spread it out. This means you need to be ready before mixing. -- Dave Kruger Astoria, OR *************************************************************************** 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/ ***************************************************************************Received on Tue Jun 14 2005 - 20:11:26 PDT
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