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Casting the Molds

Last week’s Thursday (21-10-10) we went to Maaike Roozenburg’s Studio in Koog Bloemwijk near Amsterdam. At 9 am we also picked up the synthetic polymer prints. These turned out to be printed very well, but every one of them is too fragile to be used for mold casting. We now have a total of 12 printed glasses.

 

 

 
 
 
 
After discussing which glasses we will make molds of today, Maaike teached us the basis principles of mold casting. Because the molds consist out of three parts, one side of a glass and the top and bottom of the glass are covered with clay. After this the 4 sides of the clay are clamped with wooden formwork. Then the plaster solution is carefully poured into the mold. This has to dry and harden for about 30-45 minutes. Next, the mold is put upside down to cast the other side and finally the bottom.
 
 
 
 
 
 
 
Because this is a very time and labour intensive process we did not manage to finish the molds. Also, they have to dry for a couple of days before they can be used. Maaike will finish the molds that we did not complete. All in all, we learned a lot today about mold casting. It is not as easy as it seems!
 
 
 
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