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naval stores
Naval stores are all products derived from pine sap, which are used to manufacture soap, paint, varnish, shoe polish, lubricants, linoleum, and roofing materials.
The term ''naval stores'' originally applied to the resin-based components used in building and maintaining wooden sailing ships, a category which includes cordage, mask, turpentine, rosin, pitch and tar.
==History==
Ships made of wood required a flexible material, insoluble in water, to seal the spaces between planks. Pine pitch was often mixed with fibers like hemp to caulk spaces which might otherwise leak. Crude gum or oleoresin can be collected from the wounds of living pine trees.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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