Durastic plastic armour worked best where weight mattered

Was Durastic plastic armour used on large warships as laminate or splinter backing?

Sometimes, but it was more attractive on smaller weight-sensitive ships and was limited by mixture quality and competing materials.

The question identifies Durastic as an asphalt-and-cork material photographed on an escort carrier and asks whether large ships used it within armour schemes. It was chiefly attractive on smaller vessels where weight was critical, although some larger-ship use was possible. Designers could prefer treated wood or thicker metal, and the material’s performance depended on getting its mixture right. Durastic nevertheless survived as a naval supplier and became familiar as durable deck and flooring material, including surfaces used around modern flight decks. Its wartime promise as lightweight protection therefore needs to be separated from its longer commercial life aboard ships.