Sandwich panel

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Diagram of a sandwich panel structure uploaded from Wikimedia
Archival honeycomb board
Multi-layer sandwich board diagram from Panel


A special class of composite materials that is fabricated by attaching two thin, stiff skins to a lightweight core. The core material is normally of low strength, but its greater thickness provides a sandwich composite that has high bending stiffness but low density. Commonly used core materials include foams (polyethersulfone, polyvinylchloride, Polyurethane, Polyethylene, Polystyrene), balsa wood, gypsum; fiberglass, corrugated sheets, and honeycombs (paper, aluminum, aramid). The skin material may be sheets of paper, cloth, metal, glass, carbon fiber or polymeric. Sandwich panels are used in applications to provide a combination of high structural rigidity and low weight.

Synonyms and Related Terms

sandwich board; sandwich plate; support board; foam core; composite board; sandwich-structure composite; honeycomb panel


  • Construction

Working Properties


Forms and Sizes

Physical and Chemical Properties

Resources and Citations

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