Mexican designer Pablo Limón has produced a set of furniture pieces with chromatic rainbow finishes, created by gently buffing surfaces covered in layers of silver nitrate.
Limón's designs are the result of experiments with metallic coatings, applied to medium-density-foam bases shaped like simple seats or side tables.

Over the forms, primed so they become non-porous, the silver nitrate is applied one layer at a time. Each is left to dry at 32 degrees celsius, "then a catalyst is applied to create a chemical reaction with which the chrome effect comes out", Limón told Dezeen.
He also adds paint dyes to the material to produce different hues. Finally, the surfaces are polished so the next layer can be applied on top.

The process is repeated three or four times, depending on the desired depth of colours. Once satisfied, Limón takes a circular sander to the surfaces, gently eroding away portions of the layers. "This process is done by hand and the control of the effect is limited by chance," he said. "The erosion is very delicate, and done with water sandpaper that removes the matter that is wanted."

The result is an effect similar to an oil slick, with ribbons of colour trailed across the surfaces in fluid patterns.
"After many tests with very clear ideas, and others more random, we managed to create this process that plays with the chromatic effect in such a three-dimensional and graphic way," said Limón. "It's so graphic ...