Explosive, flammable items and gas and pressure containers are not allowed on flights. Gunpowder, including black powder and percussion caps, dynamites, blasting caps, fireworks, flares, plastic explosives, grenades, carbon dioxide cartridges, oxidizers, gasoline, gas torches, lighter fluid, cooking fuel and other types of flammable liquid fuel, flammable paints, paint thinner and turpentine are some of the popular items included in the long list of materials not allowed during an international flight. Even mere replicas of incendiary devices and explosives are prohibited. A complete list of these items is available on airline company websites, travel websites and the Transportation Security Administration (TSA) website.
Aerosols---except for limited-size and content from personal care items, toiletries or medically related items with doctor's prescriptions---are not allowed in air travel as well. For regulated aerosol items, it is best to inquire with the airline company ahead of time to confirm if they can be brought during the travel.
All types of poisons, corrosives and infectious materials are not allowed during air travel. These include weed killers, pesticides, insecticides, rodent poisons, arsenic, cyanides, drain cleaners, car batteries, wet cell batteries, acids, alkalis, lye, mercury, medical laboratory specimens, viral organisms and bacterial cultures. Even organics like fiberglass resins and peroxides are not allowed in international travel due to security, biological and economic risks involved in carrying these materials.
Strong magnetic materials like those in some loudspeakers and laboratory equipment are not allowed during air travel due to their magnetic properties that may impose communication and security problems during the flight.
Other dangerous items such as tear gas, spray paint, swimming pool or spa chlorine and torch lighters are also prohibited during air travel. Radioactive materials and devices can not be brought during the flight, except for some implanted radioactive medical devices. It is best to confirm with the airline company before the flight to avoid travel hassles when bringing regulated radioactive medical devices. The airline company can also provide options on how to ship prohibited materials needed to be brought to another country, as long as permits are secured.
