Incomplete cure
High severitySymptoms
Tacky coating, strong odor, scratches with a nail
Probable causes
- Worn or dirty lamps
- excessive speed
- thick film
- insufficient photoinitiator
The Print Guy · 2026-10-05
Other problems in this category
UV coating · TPG-151
Poor UV adhesion over ink
Coating peels with tape or at folding; flakes
UV coating · TPG-152
UV wrinkling
The UV film wrinkles or folds over fresh ink
UV coating · TPG-155
UV cracking at folding/die-cutting
White cracks at folds and cuts
UV coating · TPG-153
Residual odor in the product
Characteristic smell persisting after curing
UV coating · TPG-154
Uneven UV gloss
Alternating matte and glossy zones
UV coating · TPG-156
Fish eyes in spot UV
Circular uncoated dots within the motif