How Does a Metallized Coating Protect the Steel Substrate?


March 8, 2016

Category: Painting and Metallizing  -  Published by: Maxime Ampleman

Metallizing protects steel in two ways:

  1. Barrier Protection: The spray coating itself provides a strong barrier between the environment and the steel surface, keeping out water that eventually leads to oxidation.
  2. Cathodic Protection: Metallizing is also effective because it relies on an electrochemical reaction between steel and zinc to drive these zinc-based coatings to “sacrifice” themselves to protect the steel at the site of any damage. This sacrificial protection is akin to the protection provided by zinc-rich primers or galvanizing.

Tomorrow: What is the difference between metallizing and hot-dip galvanizing?

For more information, view our video on metallizing and visit the Painting and Metallizing section of our website.

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