Why are aerosol cans almost always made of tinplate?

The liquid inside the aerosol can is formed by pressurizing a certain gas using a gas compressor. The pressure inside the can is much greater than that of the air outside, so the aerosol can sprays a white aerosol, which is at the nanometer level.

To withstand high-pressure items, the can must be very rigid, otherwise it will easily deform or even explode. Therefore, when choosing packaging, metal materials are the most suitable, such as stainless steel or tinplate.

Let’s compare stainless steel cans and tinplate cans, and you’ll know why tinplate cans are almost always chosen for aerosol cans. I believe everyone is very familiar with stainless steel. It is not only strong in rigidity, but also does not rust! It has a particularly long lifespan and is a very good choice in terms of packaging, but it also has its shortcomings, that is, it is too expensive! And what about tinplate cans? The same goes for tinplate cans, which are not only strong in rigidity, but also will not rust.

In general, the advantages of tinplate cans are: strong rigidity, opacity, good sealing, no rust, green and environmentally friendly, and recyclable.