The appearance of rust on metal is a process which appears with time and humidity. Generally, this impact isn't appreciated  because metal becomes ugly and dirty. But, by applying a special treatment on the metal leaves, we can control the development of rust, and create rusty patterns. Gradually, the color of metal changes and the patterns evolve with time, according to the humidity in the air. Then, rust shows aesthetic properties in a new light.

Credits: All rights reserved Arturo Erbsman / 2017