Introduction to Working with Plaster

Introduction to Working with Plaster

$195.00

In this introductory class we will cover the basics of working with plaster to make utility items (damp boxes and plaster slabs), how to make simple one part molds from found and constructed objects for use with handbuilding as hump and/or slump molds, and how to make a two-part press mold. This class does not cover slipcasting, this is covered in Introduction to Two-Part Molds and Slipcasting class.

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Skill Level: Two - Beginner-Intermediate (basic knowledge of ceramics helpful) 

Requirements: At least one ceramics class and ability to work with clay, preferably handbuilding techniques

In this introductory class we will cover the basics of working with plaster to make utility items (damp boxes and plaster slabs), how to make simple one part molds from found and constructed objects for use with handbuilding as hump and/or slump molds, and how to make a two-part press mold. This class does not cover slipcasting, this is covered in Introduction to Two-Part Molds and Slipcasting class. 

Week One:

  • Plaster basics - what plaster is, the various types available, and how it works

  • Calculating how much you need

  • Mixing and pouring

  • Making damp boxes and slabs

  • Evaluating objects for one-part molds

Week Two:

  • Undercuts

  • Hump molds and slump molds

  • Making a simple hump mold

Week Three:

  • Using cottle boards (and other ways to contain your plaster)

  • Making a slump mold

  • Making a simple two-part press mold for a handle

Week Four:

  • How to use and care for your molds

  • Finishing up and review!

Included with class:

  • All supplies and materials for class projects

  • 15lbs of Cone 6 stoneware clay

  • Bisque firings for work made during class (glaze firings are not included)

  • Studio access outside of class time during the following hours:
    Monday-Thursday 9:00AM-9:00PM, Friday-Sunday 10:00AM-6:00PM

You will need to bring:

  • Something to take notes with is highly recommended

  • Objects for making molds (this will be discussed in the first class)

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