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Annaigee - Professional Custom Jewelry Box Manufacturer & Jewelry Packaging Supplier.

How can I reduce bubbling, lifting, or delamination in PU-covered watch boxes?

2026-11-06

First distinguish failure between the covering and core from separation within the PU material itself. Review the material, adhesive, and processing conditions accordingly. Sample the actual material combination, inspect corners and wrapped edges, and arrange appropriate performance checks for the intended environment.

Controlled workshop conditions support process consistency but cannot alone guarantee freedom from bubbling or delamination.

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