The market excludes conventional commodity foams and foam products that are not specifically supplied for aerospace or space applications, including general-purpose packaging, furniture, construction, automotive, marine, consumer, and industrial foams. Raw polymers, resins, chemicals, additives, and other upstream materials sold without being converted into the defined foam products are excluded. Non-foam insulation, seals, gaskets, acoustic materials, structural materials, and other components manufactured without the specified foam materials are also excluded. Revenue from complete aircraft, spacecraft, engines, seats, cabin systems, and other finished aerospace equipment is excluded where the foam component cannot be separately identified. Standalone installation, maintenance, consulting, engineering, and other services are excluded unless incorporated into the identifiable sale of the foam product or component. Products used exclusively outside commercial aviation, military aviation, business aviation, and space applications are also excluded.