← All symptomsSafety stop: Stop the process if there is smoke, an electrical fault, a strong unfamiliar odor, melting, cracked glass, or evidence that the material is not heat-rated. Follow the equipment and blank manufacturer’s safety instructions.
Prioritized checks
Starting order
Confirm or weaken each cause before changing the next variable.
1
Blank coating is defective, damaged, or not intended for the process
Evidence that supports it
- Flaking exists before pressing or repeats within one blank lot.
Evidence against it
- A control from the same lot and process is sound.
Safe next actions
- Stop using the lot and document photos, SKU, lot, and settings.
- Contact the blank supplier; do not conceal structural coating failure.
2
Process exceeded the coating’s documented range
Evidence that supports it
- Blistering, softening, browning, or deformation accompanies failure.
Evidence against it
- Recorded process values and calibrated measurements match the exact instruction.
Safe next actions
- Quarantine affected work.
- Verify actual platen temperature and the exact product instruction before retesting.
Stop condition: Stop if the coating emits smoke or an unfamiliar odor, or if the material identity/safety rating is unknown.