Due to the shrinkage of the silver clay, you should keep a larger ring size.
Silver clay of 999 silver and silver clay of 950 silver have different shrinkage, see diagrams below. The shrinkage of the 950 silver clay is greater.
Art Clay Silver 999
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Narrow ring, makes the ring 2 to 3 sizes larger
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Wide ring, makes the ring 3 to 4 sizes larger
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Extra wide and thick ring, makes the ring 4 to 5 sizes larger
Note: If you are making an extra large statement ring, please make the ring 6 sizes larger.
For bronze clay rings, use the diagram of Art Clay Silver 950 and add 1 more size.
For copper clay rings, use the scheme of Art Clay Silver 950.
Art Clay Silver 950
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Narrow ring, makes the ring 3 to 4 sizes larger
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Wide ring, makes the ring 4 to 5 sizes larger
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Extra wide and thick ring, makes the ring 5 to 6 sizes larger
Bronze clay rings
For bronze clay rings, use the diagram of Art Clay Silver 950 and add 1 more size.
Copper clay rings
For copper clay rings, use the scheme of Art Clay Silver 950.
Basic work description rings.
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Use a wooden ring stick ( ring mandrel) And use the metal rings bunch with Japanese ring sizes.
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Preparing the ring mandrel Start with a few sizes larger so that the ring will be the desired ring size after firing. (See table). E.g. Stick a post-it note around a wooden ring stick and mark with a pencil the ring size you wish to start with.
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Roll out the ring band. Depending on the desired ring model, place an even sausage or flat strip of clay around the mandrel. Trim the sides with a knife. Provide an overlap of +/- 1 cm. (To roll out a flat strip evenly, use the white strips, the spacers, of 1.5 mm).
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Moisten the yellow post-it a bit and the clay as well. Then place the clay around the mandrel with the edge of the clay on the pencil line. The moisture will make the ring stick.
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Let the ends overlap. Cut away the excess clay and use paste to seal the clasp. Smooth the closure nicely with a spatula. For more strength, cut away the excess clay at an angle, allowing the clay to overlap slightly. Make sure the thickness is even with no dimples. Let dry carefully on the mandrel.
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When the ring is thoroughly dry you can apply patterns to it with needle tool or files or decorate it with ornaments, put boxes or lines in different thicknesses sprayed with spray clay
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For finishing and baking, follow the finishing instructions and the instructions at finishing.
What if the ring is too small
Reheating the baked-off ring softens the silver and you can strike the ring large with a rubber mallet on a steel ring stick. The beating causes the silver to harden again.
If you still do not have the desired size, then repeat.
This does make the ring thinner. So you cannot repeat this endlessly.
