COE Checker
Check coefficient of expansion compatibility between glass types to prevent cracking.
Inputs
e.g. 90 for Bullseye, 96 for Spectrum
Results
COE Difference
2.0 x10⁻⁷/°C
Compatible
Yes
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Start FreeCOE Compatibility Checker
Artisan by Irora Labs
March 23, 2026
Inputs
| Glass/Body COE | 90 x10⁻⁷/°C |
| Glaze/Overlay COE | 92 x10⁻⁷/°C |
Results
| COE Difference | 2.0 x10⁻⁷/°C |
| Compatible | Yes |
Created with Artisan. artisan.iroralabs.com/craft-calculators/coe-checker
Tips
Open formula
Compares thermal expansion coefficients. Mismatched COE causes stress cracking.
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