By this time I had phoned CTM about ordering stains and asked advice...
and I did some more reading around. I found out there are both inorganic and organic glaze binders, and that both can help with suspension of the glaze as well as application Inorganic binders are especially useful to improve glaze suspension and include
The downside however that being organic they decompose, leading to the recommendation that they should be added to glaze as it is needed or a preservative added too. I could find no mention of what that preservative might be, though presumably it goes into the commercial brush on glazes I have used in the past. The recommendations were to use 2-5% (>5% organic glaze binders can burn out leaving bubbles on firing) to the dry weight of glaze, and that the glaze binder should be made up in water the day before you use it. I was being too impatient. I went away for Christmas and New Year. Pehatine looks expensive at £12 plus VAT diluted 1 part Pehatine to 2 parts water then added one to one with glaze. My granules are likely to be cellulose glaze binder, no longer visible on the Potclays website.
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Brushing
+ no need for a spray booth + less waste - can be patchy - requires at least 3 coats - best with giaze thickener time to try a glaze thickener... |
AuthorI am indulging my passion for ceramics by undertaking studies for an MA at UCLAN Archives
August 2021
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