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This process is described in detail in the figure sculpture in plaster and wax, The needed supplies are, plaster of paris,Microcrystaline Wax
Good safety gear is a must. Goggles that can handle the heat, welding gloves, respirator.... the main risks are fumes and flying molten metal so dress appropriate. This is not a safe process and i don't recommend you do it!
1. The bust built in wax. note the vent from the chin and the large reservoir to get a mass of metal pushing in.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhD3RV6BvmUYRA6RcogYp2YJS65sj1LZnypuTsYpQ4mrcY2Xh0AydkjooqRmxJOyHV27bOvIQJEQhI05IvAUd_tNuo0XUme5UVnluuib2WSDvHGyqcO8_ineiiFr_W60Q-2BStQGgu8iwcG/s320/1.pope+john+paul+the+second+in+wax.jpg)
2. nails are put in to make blind vents.
3. Plaster is painted over the entire piece and then the nails are pulled.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgq1Xi3mbGLiM9PPnUclbEujtjirJXv20l9N0ICPcgKBel36PT7NT7blJDhybr4uv6KjHdOgE8-kd-ru_FinXM9BPhKfAiztWSIDoUnklRDb2zSocubWrJCULOk8iKOVzPQz2Oj8cTNC1px/s320/3.+first+layer+of+plaster.jpg)
4. after pulling the nails it is wrapped in rags soaked in plaster. and a small can is attached to make an easy spot to pour.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhdDqwuLZo3j2bi4CTohj_9fjO24PAzInLL12mRqllVS2giGm8ke5xdmuh3qe5oIft05tTPTqwk4a-BdYFJq7upcXetMsS9ONR60AEvagF4yH5UcPyF0xX2pPFFfIWiav1H2aTItYWsArFv/s320/4.+plaster+and+the+can.jpg)
5. the can is cut to allow for the wax to flow out and the can is put in the boiling water.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh2L4exQCwdJLKyP8vflOIcKcgvaW3f3YKLOlmAK3TyCt_9kHyKxER2AV-U8_0qigJgsJwXd-Hn8mHasAwCv5eqxUQ2bepiFkdaWIWRPkqxDvb0FUDVyjyk8UqdV9NZPE7I-Krikup_VUba/s320/5.+steam+wax+burnout.jpg)
6. a coffee can holds the heat on the mold. The wax that flows out needs to be constantly removed to stop it from exploding with steam under a continuous surface of wax.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjyylb7Mxh92SZOxlLpOE1t9aJW6bmVUJktjpVaY-QSFaCE3YNvar-Tyfsre7hPS3SlVNYStFjfDUECSSNfcXHGVzD_R3xqTLcX61cl2JfLbHMvw-sAwrd15Ry7upnRxahcR-IyH0W4z2rT/s320/IMG_0494.jpg)
7. The wax burned out a little longer over the fire
8. video of the pour. The zinc from Rotometals is heated in a normal can that food comes in. it is bent with pliers to make a nice spout. As you can see the burnout was inadequate and lead to a metal volcano.
9. after the pour some wax was not burned out and caused steam to prevent full filling of the mold.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhP02Nigyipcy2IzFO8UGkRGAoVCWVcKjWFBJaSzzRCSNR5nFPyJb3aywq-GS4qznlfMlevsrLLsaqYTeNyVr72bHngaTag3Nf4x7CvwyXupBgpdz8l_t-DzTzhpfIgurjVdKhjI5fZ9pk4/s320/6.+lost+wax+bust+after+pour.jpg)
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