Delamination

Delamination

Definition

Delamination refers to the separation or splitting of layers within a laminated, coated, or mounted material. This can occur in paper, mat board, prints, or other layered substrates, often compromising the structural integrity and appearance of the item.

Causes

• Moisture or water damage causing layers to expand unevenly.
• Excessive heat or humidity leading to adhesive failure.
• Mechanical stress, such as bending or impact.
• Age-related deterioration of adhesives or coatings.

Identification

• Visible separation of layers, often starting at edges or corners.
• Wrinkling, bubbling, or lifting of surface layers.
• Loss of adhesion resulting in flaking or peeling.

Prevention and Best Practices

• Store laminated or mounted materials in a stable, climate-controlled environment.
• Use archival-quality adhesives and mounting materials to reduce long-term risk.
• Handle artwork carefully to minimize bending, flexing, or impact.
• Employ protective glazing or framing to shield layers from environmental stress.

Related Terms

• Blister
• Lifting
• Flaking
• Crazing