What is delamination?

Delamination is a process of separation or failure that occurs between layers of a material, typically due to a decrease in adhesion or cohesion between layers. It is a common problem in composite materials, such as fiberglass, carbon fiber, or laminated wood, where two or more layers are bonded together with a resin or adhesive. Delamination can occur due to several reasons, such as moisture ingress, heat exposure, mechanical stress, or manufacturing defects.

The symptoms of delamination typically include blistering, bubbling, or cracking of the surface material, which may expose the underlying layers. This can weaken the structure of the material, compromise its mechanical properties, and reduce its durability and lifespan. In some cases, delamination can also cause safety hazards, such as in aerospace or automotive applications, where structural integrity is crucial.

To prevent delamination, proper manufacturing techniques, material selection, and maintenance procedures should be followed. Regular inspections and testing can help identify and address any potential delamination issues early on. Repairing or replacing delaminated materials may require specialized expertise and techniques, depending on the severity and location of the damage.