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Topic: Resin not setting (semi-emergency!)  (Read 704 times)
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miserylovesme
« on: October 05, 2007 09:03:37 PM »

Have you ever had a resin take a full 72 hours or longer to set?

Mine are almost always fulled cured within 36, even though it says it may take 72.

If it hasn't cured fulled in 72, does that mean it won't set at all?

It doesn't leave impressions to handle it, but you can poke it with a toothpick and it leaves impressions. It's been 48 hours.
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krissykat
« Reply #1 on: October 05, 2007 09:20:12 PM »

I use Castin' Craft and I have had some stuff stay like that for longer than I expected. (It was over the summer and really humid, though I don't know if that had anything to do with it.) I had to sand the backs (the part that was exposed when it was in the mold) 'cause they stayed really tacky, but the fronts wound up fine after an extra few days out of the mold. Maybe as much as a week from when I poured it.
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« Reply #2 on: October 08, 2007 11:26:40 PM »

In my experience, the semi soft resin will *eventually* harden, but by eventually, I mean in 2 -3 weeks. I've had a number of pieces stay soft for this length of time and I think it's got to do with the ratio of catalyst or hardener to the resin itself, and I've found that too much pigment (if you're using any) can keep the resin from hardening fully as well.

krissykat is right, too. Before I switched to easy cast, the exposed areas of my molds would remain tacky about 50% of the time. Sanding that right back helped a lot, although was a real bitch. I've had a much better strike rate with easy cast.

Hope your pieces harden up!!
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