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Hydrocal - What did I do wrong
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I just finished the rock castings on my layout using Hydrocal. I mix the hydocal for casting to the consistency of pancake batter, easy to pour but won't run out of the edges of the molds when I pour it. Two very important point already made. <br />1, wet the mold. I soak mine in a bucket of water until I'm ready to use it on the layout. The wet in the mold helps the hydrocal flow into all the nooks and cranies in the mold. <br />2. Make sure you spray the hardshell plaster with water (I keep a spray bottle for just that purpose. A slightly damp surface will keep the already dried hydocal from leaching all the moisture out of the fresh casting and will thus let the new casting bond with the older hardshell scenery.
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