Slip Casting: Pouring and Removing Part

The final stage of the slip cast method involves taking the, now dried, plaster cast out of the drying cupboard and filling it with loose slip. In the image below the wet slip can be seen in the mixing bucket. The slip is poured into the mould, filling the cavity. This is then left there for around 30 minutes for the slip to develop a thin (5mm) layer around the walls of the cast. Once the appropriate thickness has been achieved the cast is turned upside down to let the extra slip to be poured out. The upturned cast is then left for roughly 3 hours, to harden enough to be removed from the cast.

Photo 19-02-2014 14 40 41 Photo 19-02-2014 14 40 36 Photo 20-02-2014 14 04 39 Photo 20-02-2014 14 04 36

Once the part is removed it can be slightly smoothed out and can be attached if part of a bigger part (eg. A spout, handle and body of a tea pot). Once the part is ready it is fired to an appropriate temperature, once fired the resulting part is ready to be used. In the images below the final parts can be seen.

Photo 19-02-2014 14 43 12 Photo 24-02-2014 17 26 51

I am happy with the results but I have learned how to better my process and hope that next time around it will be improved upon. The lid is not 100% accurate and there is a distinctive split line, these are both issues that I plan to remedy in MK2.


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