Creative Glass Network

Mould Construction

Mould Construction

with Erna Piechna-Sowersby (CH)

If you are looking to bridge the gap from fusing into glass casting, then this 3 day workshop is just what you are looking for. Erna will take you through the mould making process, step-by-step, to create reference samples using all the materials and techniques presented. You will learn to understand the specific behaviour of each material and how this relates to your project and the glass you want to use.


Vermiculite and Fondu Cement – A durable slumping mould which helps to reproduce natural, flowing shapes. You will learn how to take a negative of a model or body part with plaster bandage and then use it to build a slumping mould.

Hydracast – A one-use casting/slumping mould which has wonderful properties to allow you to recreate fine detail. The model is made either of clay or wax also with undercuttings.

Sand and Bentonite – A flexible and inexpensive mix allowing you to spontaneously build a casting or slumping mould which affords you the most freedom to take an imprint from all sorts of objects.

Prerequisite: Fusing Skills are advantageous

Past Courses

  • Fusing – Mould Construction- Erna Piechna-Sowersby – 25. – 28. May 2016
  • Casting – Mould Construction – Erna Piechna-Sowersby – 5 – 7 May 2017
  • Casting – Mould Construction – Erna Piechna-Sowersby – 20 – 22 March 2017
  • Fusing – Mould Making – Erna Piechna-Sowersby – 20. – 22. May 2014