Analyze Base Glaze Recipe
2 hoursCalculate unity formula and Si:Al ratio for target surface.
Intermediate2-3 weeks
Glaze Chemistry 101 Guide
Complete guide for glaze chemistry 101 — step-by-step workflow, tools, checklist, and expert tips to get started.
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Workflow
Test Colorant Percentages
3 hoursCalculate colorant additions and line-blend increments.
Apply and Fire Test Tiles
1 dayPlan kiln load density and cone target for glaze firing.
Adjust and Document
2 hoursCompare results and recalculate revised recipe.
Tools Used
- Glaze Chemistry Unity Formula CalculatorPrimary
Analyze glaze unity formula and limits.
- Glaze Recipe CalculatorPrimary
Scale and adjust batch recipe weights.
- Glaze Colorant Percentage CalculatorSupporting
Calculate colorant load for test line.
- Cone Equivalent CalculatorReference
Convert target cone to temperature.
Checklist
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Planning
Prep
Baseline
Quality
Tracking
Safety
Reference Materials
Glaze LimitsTable
Common oxide ranges for stable glazes.
| Oxide | Typical % | Effect |
|---|---|---|
| SiO2 | 60–75 | Glass former |
| Al2O3 | 12–18 | Stabilizer |
| CaO | 5–15 | Flux |
Unity FormulaFormula
Sum of fluxes = 1.0 in UMF — compare Si:Al ratio for gloss vs matte.
SafetyStandard
Wear respirator when mixing dry glaze — silica and metal oxides are hazardous.
Measure Twice
Verify all calculator inputs against physical measurements before cutting or mixing.
Quality Check
Compare results to known good references in glaze before final assembly.
Stop If Unsafe
Pause immediately if tools malfunction, ventilation fails, or materials react unexpectedly.
Safety Notes
- Follow manufacturer safety data sheets for all chemicals and finishes.
- Work in ventilated area and wear appropriate PPE for the task.