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Surprisingly easy Method to make a 1 part Plaster Mold

Updated January 20, 2022

How to make a plaster mold for ceramics showing the single most important step for success or failure

Intro for mold making

If you are working in almost any area of ceramics you can likely use plaster molds to assist making various forms. Bowl or hump shaped molds are very common when handbuilding forms. Slipcasting exclusively uses plaster molds to make its forms. I will show you how I make the simplest type of mold in this article, the one piece plaster mold. I go into the detail for the single most important aspect, choosing the form you will use to make a mold. 

To make it easy to find, here is a timelapse of the process described below.

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Slipcasting Ceramics: Guaranteed replicas every time!

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Plaster Mold for Slipcasting Ceramic shell
4 part Plaster mold for Slipcasting Ceramic Shell

Intro to Slipcasting Ceramics

Most people don’t even know slipcasting ceramics is a thing. Prior to when a ceramics teacher told me I should enroll in a slipcasting class I had not heard of it either. My teacher’s suggestion was not to learn slipcasting but rather learn how to make plaster molds. I had made two plastermolds and brought them to her class and she told me they were crap. 

Read moreSlipcasting Ceramics: Guaranteed replicas every time!