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Bridge Metallizing Services All metals have properties that cause them to react as an anode or a cathode when coupled to another material in a corrosive environment. The application of zinc (anodic coating) to iron substrates forms a protective layer and results in corrosion protection referred to as cathodic protection or sacrificial protection. Aluminizing or Spray Galvanizing provides good mechanical interlocking based on quality abrasive blasted pre-treament. Coating thickness of up to 500 microns can be applied though the industry standard is 100-150 microns. Aluminizing process is ideal in high temperature environments to prevent oxidation and corrosion. Coating with sealants provides a base for paints for longer life to structures.
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