What is hot-dip galvanizing? A process that protects steel from corrosion by coating it in a durable layer of zinc. This is done by immersing the metal into a bath of molten zinc at a temperature of around 840°F. At Valmont, we hot-dip galvanize the structures you rely on—like utility poles, telecom towers, center pivots and bridges—so that they can withstand the test of time and the harshest environments.