katodipinnoitteen
Katodipinnoite, or cathodic coating, is a surface treatment applied to metal to function as the cathodic component of a galvanic corrosion system. The coating is designed to be more noble than the substrate in an electrolyte, helping to suppress anodic dissolution of the underlying metal and to improve overall resistance to corrosion. In Finnish usage, the term katodipinnoite is common; the genitive katodipinnoitteen appears in technical texts.
In practice, cathodic coatings protect by two mechanisms: the barrier effect of a dense coating that limits
Applications and methods: Cathodic coatings are usually produced by electrodeposition of inorganic or organic layers, chemical
Advantages and limitations: Benefits include enhanced corrosion resistance, compatibility with other coatings, and potential reductions in
See also: corrosion protection; electrodeposition; conversion coating; cathodic protection.