UV cracking at folding/die-cutting

High severity

Symptoms

White cracks at folds and cuts

Probable causes

  • Thick brittle UV film
  • insufficient crease
  • non-flexible coating

The Print Guy · 2026-10-05

Other problems in this category

UV coating · TPG-150

Incomplete cure

Tacky coating, strong odor, scratches with a nail

High severity

UV coating · TPG-151

Poor UV adhesion over ink

Coating peels with tape or at folding; flakes

High severity

UV coating · TPG-152

UV wrinkling

The UV film wrinkles or folds over fresh ink

High severity

UV coating · TPG-153

Residual odor in the product

Characteristic smell persisting after curing

Medium severity

UV coating · TPG-154

Uneven UV gloss

Alternating matte and glossy zones

Medium severity

UV coating · TPG-156

Fish eyes in spot UV

Circular uncoated dots within the motif

Medium severity
All UV coating problems (7) →

Other categories

Water-based coating (8)Wire/Spiral binding (7)Binding (hotmelt/PUR) (8)