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Fine Silver (99.9% pure) Popcorn Pendant!

Step 13Fire up the Kiln!

Fire up the Kiln!
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  • vermiculite-2396.jpg
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I'm going to use a small craft kiln to fire this pendant.

Place the pendant on a small pile of vermiculite on a kiln shelf. (See pics).

Then you put the kiln shelf in the kiln. (See pics).

Since there are several types of PMC, you should follow the firing instructions in the box, but I'll summarize the firing properties here.

- PMC+: Smaller Particle sizes, firing times range from 10-30 minutes at temps from 1470-1650, Shrinks 12-14%
- PMC3: Smallest Particles, firing times range from 10-30 minutes at temps from 1110-1250, Shrinks 10-12%

The minimum times are what's required to sinter the metal particles together. However, the longer times will yield a stronger end product. You stop seeing any improvements in strength after the maximum times.

There are several inexpensive options to fire PMC without using a kiln. They require a little finesse, however, and so will be covered in their own instructables!
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Author:roughtyper