Glaze Thickness Calculator
Calculate recommended dip time and number of brush coats to achieve a target glaze thickness based on specific gravity and viscosity.
Inputs
Results
Recommended Dip Time
2.4 seconds
Brush Coats Needed
7
How to Use This Calculator
- Enter the target glaze thickness in millimeters — 0.5–1.0 mm is standard for most studio glazes.
- Measure the specific gravity of your mixed glaze with a hydrometer and enter it (typically 1.4–1.6 for dipping glazes).
- Select the viscosity level: 1 for thin/runny, 2 for medium, or 3 for thick gel-like glaze.
- Read the recommended dip time in seconds for achieving your target thickness.
- If brush-applying, use the brush coats output to know how many coats to apply.
- Use the glaze per square inch value to estimate total glaze needed for your piece surface area.
How the result changes with Target Thickness
| Target Thickness | Recommended Dip Time | Brush Coats Needed |
|---|---|---|
| 0.39 | 1.2 seconds | 4 |
| 1.11 | 3.4 seconds | 10 |
| 1.99 | 6 seconds | 17 |
| 2.71 | 8.2 seconds | 23 |
What each input means
- Target Thickness
- Desired glaze thickness in millimeters. 0.5-1.0 mm is typical for most glazes; thicker for crawl/texture glazes.
- Specific Gravity
- Glaze specific gravity measured with a hydrometer. 1.4-1.6 is typical for dipping glazes.
- Viscosity
- Glaze viscosity: 1 = Thin (runny, quick dip), 2 = Medium (standard), 3 = Thick (gel-like, slower deposit).
How this is calculated
Worked example, using the default values
- Identify Input ParametersTarget Thickness = 0.8, Specific Gravity = 1.5, Viscosity = 2 = 3 input(s) provided
- Calculate Recommended Dip TimeRecommended Dip Time2.4 = 2.4
- Calculate Brush Coats NeededBrush Coats Needed7 = 7
- Calculate Glaze per sq inGlaze per sq in0.186 = 0.186
- Calculate Deposit RateDeposit Rate0.33 = 0.33
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