A specialized type of plywood, engineered for use in demanding, moisture-rich environments, particularly those associated with shipbuilding and marine applications. It is manufactured with durable face and core veneers and is assembled with waterproof glue to resist delamination and fungal attack in humid and wet conditions. For example, it is often employed in the construction of boat hulls, decks, and interior components where exposure to water is constant.
The significance of this material lies in its superior strength and resistance to degradation compared to standard plywood. Its use ensures structural integrity and longevity in marine vessels and other outdoor projects subject to severe weather. Historically, its development has enabled safer and more reliable watercraft, contributing significantly to maritime industries and recreational boating.