kromattuja

Kromattuja is a Finnish adjective meaning “chromated,” used to describe surfaces or objects that have undergone chromation, typically through chrome plating or chromate coating. The term is common in metalworking, construction, and manufacturing contexts, where coatings are applied to improve corrosion resistance, wear resistance, hardness, or appearance.

Origin and usage: The base word is kromattu, the past participle of kromata (to chrome or to chromate). Kromattuja is the plural form used to modify plural nouns in the partitive or accusative case, for example in phrases like kromattuja pultteja (chromated bolts) or kromattuja levyjä (chromated sheets). This form appears in technical and procurement language, where plural items are described collectively.

Industrial relevance: Kromattuja coatings can refer to different chromium-containing treatments, including chromium electroplating and chromate conversion coatings. The exact method and chromium specification vary by manufacturer and application. In datasheets and product catalogs, kromattuja describe items that have received a chromium-based surface treatment, signaling a protective or aesthetic coating rather than the bare metal.

See also: chromium plating; chromate coating; corrosion protection; metal finishing.