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Industrial
Coating Processes and Design
Industrial
Coating Services Directory
Ecorr Systems - Rust Corrosion Inhibitors National distributor of Cortec Corrosion Control products, Providing "eco"friendly and "eco"nomical CortecŪ Vapor-Phase Corrosion Inhibiting (VpCI) corrosion control solutions. www.ecorrsystems.com |
Daubert Chemical Company Leading provider of specialty coatings and adhesives. Serving the steel, automotive, transposrtation, and general manufacturing industries. Focus on corrosion resistant, anti-skid, sound deadening and specialty coatings. www.daubertchemical.com |
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Corrosion resistance coatings are available for most materials, surface
types, and application environments. Corrosion resistant coatings can
significantly increase the usable lifetime of materials while reducing
maintenance and replacement costs. There are many possible operating
applications which will result in corrosion. The following are many types
of common corrosions which occur in applications;
Galvanic corrosion is one of the most common forms of corrosions
which does occur in products. There are three conditions that must exist for galvanic corrosion to
occur. First there must be two electrochemically dissimilar
metals present. Second, there must be an electrically conductive path between the two
metals. And third, there
must be a conductive path for the metal ions to move from the more anodic metal to the more cathodic metal.
Corrosion resistant coatings would be applied to eliminate one or more of the corrosion
causing conditions.
Caustic agent corrosion is caused by corrosive impurities in gases, liquids,
solids or any combination of the three, which come in contact with a material. Most petrochemical process
gases contain a certain amount of impurities, which may dissolve into the water
and become corrosive. For example, hydrogen sulfide is a common impurity in
cracked gas. Usually these
impurities are not corrosive in a dry condition, but when moisture is present,
they will dissolve into the water and form hazardous acidic vapor or droplets.
With these conditions present in the petrochemical process, applying
corrosion resistant coatings is imperative
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