When someone says aluminium, the first thing to usually come in mind is the foil you use to wrap leftovers. The truth is that aluminium is in more objects you use every day than the ones you already know—cans, vehicles, lipstick sleeves, jewellery, to name a few—and for good reason. Aluminium is the second-most abundant metallic element on Earth, right next to silicone, which by the way is an even less familiar element despite its abundance.
Aluminium is known for its shiny surface and resistance to rusting. The only time aluminium changes its appearance and properties is when it’s alloyed, cladded, or galvanized with other metals. There is, however, another way to improve aluminium’s properties and usefulness in various applications—anodisation. Anodised aluminium is known to last longer and to produce better decorative finishes.