NK Galvanizing

Carried out by NK Coatings Ltd, offering the complete package, hot dip galvanising, as a method of corrosion protection for steel, has grown almost continuously since it was first used to protect steel over 150 years ago. The galvanising re-action will only occur on a chemically clean surface. Common practice is good preparation of the product combined with dipping into an acidic degreasing solution. After the materials have been dipped into a cold rinse they then proceed into a preflux bath for final cleansing. Afterwards they are then immersed into a molten zinc bath at 450oC. A series of zinc-iron alloy layers are formed by a metallurgical reaction between the iron and zinc.