To secure your place email - jasmineflbradbury@gmail.com - an image of the object you’d like to mould (to ensure its suitability) and place a deposit of £325, with the remaining balance due one week before the workshop.
Itinerary
In this four-day workshop, you’ll learn how to make a two-part silicone mould with a rigid jesmonite jacket suitable for casting in metal such as bronze, iron, aluminium, and other materials including resin, jesmonite, or plaster.
Participants are encouraged to bring a small sculpture or object (maximum 20cm) of their choice to mould (to be reviewed prior to the course). You will be guided through:
Parting lines & undercuts for clean separation.
Registration keys for mould alignment.
Mould types & material consideration.
Release agents & curing times.
How to use your mould for wax casting in various materials.
By the end of the workshop, you will take home a professional-grade silicone mould, capable of casting 50+ sculptures. If you’re interested in casting your object in metal, I’m happy to facilitate the process and provide a quote.
Day 1 - 3 Hours
Introduction to rubber mould-making – process overview, health & safety.
Discussing moulding methods, parting lines, undercuts, and technical considerations.
Preparing and stabilising your object, and applying the first layer of silicone.
Day 2 - 5 Hours
Creating the parting line for a two-part mould.
Building up a thicker layer of silicone and adding registration keys.
Day 3 - 5 Hours
Complete silicone application (if needed)
Applying jesmonite jackets to both sides of the mould
Goal: Moulds fully jacketed, ready for de-moulding
Day 4 - 3 hours
Cleaning up mould edges and drilling bolt holes
Opening, cleaning, and preparing the mould for future use
Discussion on mould care, storage, and casting methods
Moulding materials provided. Please wear appropriate clothing/aprons for the workshop or studio (no sandals or open toes).
