You know why so many bottles and cans are covered with tinplate. I think this has a lot to do with the four characteristics it has.
Characteristic 1: Corrosion resistance. Since the tinplate cap is coated with tin on the surface to provide a good corrosion and rusting effect, the cap has very good corrosion resistance and will not easily rust in the application.
Characteristic 2: Non-toxic. From the point of view of the specific materials and raw material costs, the tinplate cap does not contain any substances harmful to human health, so it has non-toxic properties and can be used in food packaging.
Feature 3: Good ductility. Tinplate is a very ductile material that can be easily made into a relatively thin cap with a large flat area.
Characteristic 4: High strength. The tinplate cap has a high strength and does not easily undergo structural deformation, thereby maintaining a stable sealed package in the application.
Corrosion resistance, non-toxicity, good ductility and high strength are the four characteristics of the tinplate cap, which inevitably has a stable and reliable seal in packaging.