You want to keep all that intact, because it definitely affects the authenticity of the surfboard. Delamination occurs when heat or stress or anything else separates the fiberglass from the foam ...

Traditional surfboards are primarily constructed from petrochemicals like polyurethane foam, polyester resins, and fiberglass ...

Because they’re wooden, albizia boards have more heft than conventional foam and fiberglass surfboards, and they’re a bit more expensive because of the time it takes to make a board.