White Papers

Theoretical explanation of why Intercoat ChemGuard has outstanding edge corrosion protection

Background on Protective Coatings for Steel

July 6, 2016 - This paper outlines current theory on edge protection and shows how the Intercoat ChemGuard has advanced coating technology by overcoming formulation obstacles through innovative manufacturing techniques.

The use of coatings to prevent the corrosion of steel is one of the oldest and most studied areas of industrial science. Committee A05 on Metallic-Coated Iron and Steel Product considers its primary goal to promote the use of metallic and non-metallic coatings to prevent corrosion. The committee celebrated its centennial anniversary in 2006.1 

The ASTM centennial article includes a side bar on how metallic coatings protect steel2 from corrosion. There are two mechanisms:

  • Barrier Protection – A mechanism to keep water and/or oxygen away from steel
  • Galvanic Protection – An electrochemical force, usually from Zinc, preventing steel from corroding by oxidizing in preference to adjacent exposed steel.

Other articles are available on the subject 3, 4This article will be primarily focused on traditional barrier protection and how breakthroughs in formulation and manufacturing techniques have led to advances in edge corrosion protection. 

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