Most graffiti is made by using an " aerosol" paint can, paint that can be sprayed out of a can like you might use with hairspray.
大多数涂鸦都是使用“气溶胶” 油漆罐制作的,这种油漆可以像喷发胶一样从罐中喷出。
英语百科
Aerosol paint
Spray paint (scientific name aerosol paint ) is a type of paint that comes in a sealed pressurized container and is released in a Aerosol spray when depressing a valve button. Spray paint leaves a smooth, evenly coated surface, unlike many traditional rolled or brushed paints. Standard sized cans are lightweight, portable, cheap, and easy to store. Aerosol primer can be applied directly to bare metal and many plastics.