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The tip of the dopstick is dipped into the molten cement, which is allowed to cool until it has the consistency of putty. The stone too is separately warmed up to about the same temperature. Then the dopstick is pressed down over the stone, and the cement is pressed with the fingers so as to
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Formulations with higher melting point, like 65-75 °C, tend to be harder at room temperature and thus hold the stone more firmly. However, they may be too hot to mold with bare fingers; and some gemstones (like
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The stone can be removed from the dopstick by warming the cement again. Alternatively, the cement can be further cooled with cold water, so that it becomes brittle, and then the stone is pried out with a knife.
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Alternatively, the stone may be warmed up to that temperature, and a few drops of molten cement can be dropped over it. The dopstick is then placed over the stone, and the cement is pressed around it.
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In typical use, a small amount of cement is melted from the tip of a cement stick or from the edge of a cement slab by holding it over an
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at 45-65 °C, when it can still be shaped with the fingers. The cement is commercially sold as sticks or flat slabs.
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262:"; featuring brown, green, and black dop wax sticks. Graves Company online catalog page. Accessed on 2019-04-19.
280:"; reddish brown, as a 1/4 pound square slab. Romanoff company online catalog page. Accessed on 2019-04-19.
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Dopping cement is usually formulated so that it is hard at room temperature, but soft and moldable like
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The Art of Gem
Cutting - Including Cabochons, Faceting, Spheres, Tumbling and Special Techniques
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is a similar material used to secure a gemstone while setting or polishing.
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313:". Online advice page, International Gem Society. Accessed on 2019-04-19.
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tightly enclose it, except for the part that is to be ground or polished.
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Dopping cement can be made from several materials, including
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can be used for that purpose, instead of a dopping cement.
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136:Commercial cements may have other formulations.
19:"Dopping" redirects here. For other uses, see
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219:, 2nd Edition. Echo Point; 322 pages.
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289:Mohsen Manutchehr-Danai (2013):
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91:or similar source of heat.
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197:. Read Books; 98 pages.
53:", "Tounded stick") for
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329:Visual arts terminology
309:J. Sean Keane (2019): "
293:. Springer; 565 pages.
213:John Sinkankas (2014):
278:Diamond Setters Cement
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339:Adhesives
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260:Adhesives
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146:turquoise
152:See also
55:grinding
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116:Shellac
59:lapping
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