Aurustumise

Aurustumise is a coating technique described in contemporary design and materials discourse as the process of applying a thin, gold-tinged, light-reflective layer to a substrate to evoke an aureate appearance. The term is a neologism derived from aurum (gold) and mise (placing), indicating the act of endowing a surface with a gold-like finish. It refers to a family of methods rather than a single protocol, emphasizing warmth of color, translucency, and subtle iridescence.

Practices commonly involve incorporating gold-colored or gold nanoparticles into a transparent binder, or depositing a very thin metal layer on a compatible substrate. Techniques include sputtering or chemical vapor deposition of metal, sol-gel encapsulation of metallic clusters, or thin-film coatings followed by a protective sealant. The formulation determines hue (pale amber to brass), gloss, and angular color shifts.

Optical effects arise from plasmonic or interference phenomena in nano- or micro-structured coatings, producing a warm, reflective surface that may shift with lighting. Durability depends on binder and sealant; some formulations resist tarnish, others require gentle handling.

Applications include sculpture, architectural detailing, jewelry, and product design, where a gold appearance is desirable but full gilding is impractical or costly. In design literature, aurustumise is often discussed as an experimental technique or design fiction rather than a standardized process.

See also: gilding, gold leaf, electroplating, nanocoatings, plasmonic coatings.