What is anti-corrosion coating treatment?
Have you ever noticed the brown-coloured formation on the metal surfaces like door hinges, iron gates, and machinery that occur when the paint has worn off? It is nothing but corrosion or in a simpler term ‘rusting’.
Rusting deteriorates the metal structures or surfaces and often reduces their strength. Hence, it is important to use anti-corrosion coating on the metal surfaces to protect them from corrosion.
Corrosion is a naturally occurring phenomenon when a metal converts to a form such as an oxide or carbonate due to a chemical or electrochemical reaction.
Corrosion coating is the method of layering the substrate or the metal surface with a protective substance to stop the corrosion from occurring. Therefore, improving the durability of metal surfaces and reducing the repair or maintenance expenses.
What is Anti-Corrosion Treatment?
Anti-corrosion treatment is the process of applying the anti-corrosive coating to maintain the structures. Anti-corrosion coating has diverse applications and it is used in multiple industries.
Apart from the usage in the construction industry, the anti-corrosion coating is used in automotive, machineries and much more.
Different Types of Anti-Corrosion Coatings
Fluoropolymer:
Fluoropolymer is a type of anti-corrosion coating which consists of a combination of resins and fluoropolymer lubricants. They are highly effective for surfaces exposed to very high and very low temperatures. They are primarily used as a corrosion protection agent which can safeguard the surfaces from rusting and expand the lifespan of the metal structures.
Epoxy:
Epoxy is not only used in flooring materials but is also used in manufacturing paints, adhesives, coatings, crack fillers, and primers. It is also one of the main components used in industrial coatings. The properties such as temperature resistance and waterproofing properties make it one of the preferred anti-corrosive materials.
Air Dry Epoxy Coating and Thermal Cure Epoxy Coating are the two main categories of epoxy coatings that are often used as anti-rust and anti-corrosion coatings in gas/oil facilities and industrial applications.
Phosphate:
Phosphate is primarily used as a pre-coating material to be applied before painting the metal surfaces. It is often used as a coating on metals like steel which prevents corrosion and protects the substrate from a chemical or electrochemical reaction.
Inorganic Zinc:
Inorganic Zinc is a type of anti-corrosion coating specifically used for blasted metal surfaces. Along with anti-corrosive properties, it is also effective in preventing the deterioration of the surfaces from salt attack, weathering, or solvents. Hence, it is one of the common corrosion-resistant materials used in ship building or the marine industry. Inorganic zinc along with epoxies, acrylics, and other topcoats enhances the corrosion resistance power of the metal structures.
Benefits of Anti-Corrosion Coating
- Enhances the lifetime of the substrates
- Protects the surfaces against harsh temperatures — low or high
- Prevents oxidation or other forms of corrosion
- Stops the surfaces from thinning due to rusting and retains the strength of the structures.
Conclusion
Anti-corrosion coatings are quite important to maintain the metal substrates in a good condition. Rusting can reduce the thickness of the structures over time and will deteriorate the quality of the metal structures. Hence, coating the surfaces with texture coating or other forms of anti-corrosion coatings is necessary to preserve the metal structures from harsh environments.