Latex Curing Times?

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skapunkninja

New Member
Hi all
Im sculpting some suit parts, and have finally got around to casting.
Ive molded the lower arm/hand with a plaster mold and slushed in latex, but i cant get the latex to cure!!
how long should it take?

Ive only done a thin layer so far. The top part of the mold (forearm) has dried nicely, but the lower/more encased part (fingers) is still wet. ive left it in our kitchen for 5 days now.

How long should it take to cure? And any tips on speeding it up?
 

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Darth Pinhead

Active Member
Yeah, fingers are FUN, lol. Gene is right; use a heater fan (For safety's sake, keep your eye on it and don't leave unattended). You need to get air flowing in there and if your mold goes from elbow to finger-tip, that's pretty deep and closed off. Also, where are these curing? As in, a cold garage or a temperature controlled part of your house?
 

Effects Guy

New Member
It should take about 12-24 hours in a plaster mold in a 75 degree or higher room, in a cold room, cold take a really long time, so a heater works well, just don't get the mold too hot or the latex could distort or even burn in some rare cases. I assume you are using slip latex. Doing this in a dried mold works a lot better. I often bake out stone molds for about 12-24 hours at about 200 degrees and allow them to cool for 4-5 hours before putting latex in the mold. Also, if you used mold release, that will slow down the cure dramatically.
 

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