Understanding Glazes: How Glazes Work with Sue McLeod (May)

May 13, 2018

Sunday, 1:00 – 5:00 pm

Please register by May 6

Price does not include GST.

Instructor: Sue McLeod

This is a class for ceramic artists who make their own glazes (or plan to) and want to better understand how they work.

Have you ever had a glaze that you loved but it ran on your shelves? Or crazed? Or you wish it was glossier? More matte? Satin? Your clear glaze isn’t that clear?

Ceramic glazes are a complex subject that often leave us scratching our heads.  A firing comes out looking different than last time. Do you understand why?  You run out of a glaze material.  Do you know what you can substitute?

When we understand our materials and how they interact with each other, we can alter our glazes to make them better.

Topics include:

  • What is a glaze?  The basic components that make up our glazes.
  • The periodic table of elements – which elements are used in ceramics and why?
  • Glaze materials and their function in a recipe.
  • Glass formers, stiffeners and fluxes – how they all work together.
  • Opacifiers and colourants – how to go about finding the colours you want?
  • Cone 10 vs Cone 6 vs Cone 04
  • Intro to chemistry and why we need to learn it.
  • Unity Molecular Formula – analyzing formulas with glaze calculation software.
  • Glaze durability – what makes a glaze durable and why durability is important for functional ceramics.
  • The Stull map – a guide to finding matte, satin and glossy glazes (and more).

Upon completion of the class, you will be invited to join my private Facebook Group where you can ask questions as they comue up in your studio.  We’ll continue learning and sharing information, together as a community.

Class is presentation style, handouts and note taking paper provided. Presentation slides will be emailed to participants after the class for future reference. There will be a visual display of test tiles to demonstrate class concepts. Includes interactive activities and time for questions and discussion.

Learn more about the instructor.


Workshop entrance on Wale Rd
Parking beneath building


May 13 2018


1:00 pm - 5:00 pm




103-318 Wale Road, Victoria, British Columbia, Canada
Register Now


Coast Collective

103-318 Wale Road
Victoria, BC  V9B 0J8

Gallery Hours

Wednesday to Sunday 11am to 5pm