Glue squeeze-out
Medium severitySymptoms
Glue visible at the cover joint or between pages
Probable causes
- Excess glue
- high clamp pressure
- glue too hot (runny)
The Print Guy · 2026-10-05
Other problems in this category
Binding (hotmelt/PUR) · TPG-233
PUR not curing / soft spine days later
Spine still soft or smelly after 48 h
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Wavy spine or book that won't close flat
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Pages pulling out (low pull test)
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Spine cracking open (cold crack)
Spine snaps and pages release, especially in cold conditions
Binding (hotmelt/PUR) · TPG-231
Glue not wetting the spine (voids)
Spine zones without glue; locally loose pages
Binding (hotmelt/PUR) · TPG-235
Cover detaching from the block
Cover separating from the spine or side guards