: Usually made from tinplate steel, aluminum, or plastic (PET). They are classified as pressure vessels and must withstand mechanical shocks and internal pressure fluctuations.

: The button or nozzle the user presses to trigger the release. Common Applications

An is a precision-engineered, self-dispensing pressurized package designed to release products as a mist, spray, foam, or stream. It functions as a complex system where a propellant (liquefied or compressed gas) creates internal pressure to force the product through a valve assembly when actuated. Core Components

A standard aerosol system consists of five main elements working in synchronization:

: The "engine" of the can, often using gases like carbon dioxide, nitrogen, or hydrocarbons like propane and butane.

: The actual material being dispensed (e.g., paint, medicine, or hairspray).