How does spray paint work?
Do you know how spray paint works? Why it exits the can like it does is due to a combination of propellant gas and paint.
During manufacture, the cans are pumped full of paint prior to being injected with propellant gas. To compress the compound inside the can, the valve is subjected to crimping. This is the reason for releasing from the can in the way it does.
Prior to 1978, chlorofluorocarbon propellant was the agent of choice but after it was discovered they had a negative effect on the ozone, they were prohibited. Manufacturers switched to a hydrocarbon until the 1980s when it was discovered they were caused smog! So, manufacturers currently use hydrofluorocarbons, which contain a combination of fluorine, carbon and hydrogen and these do not pose as much of a danger to the environment.
This technology is a genius combo of mechanics, physics and chemistry allowing spray paint to become to a very useful thing to use for home improvements or industrial applications. Industrial use will require certain health and safety precautions, such as Spray Booth Filters. For more information, visit a site like https://www.dustspares.co.uk/spray-booth-filters/ .
The benefits for both home improvers and industrial operations include no waste, an even coating and faster application.
Why is there a ball bearing inside the can? You will always hear a pea-sized metal ball bearing inside the can when it is shaken, and this is to ensure the components are mixed well. If the two components are allowed to settle, they will come out uneven and the paint will form a clot.