What are Metal coatings

Coating is a solid continuous film obtained by primary coating. It is applied to the surface of structural components of metal, fabric, plastic to prevent corrosion from happening. These coatings have many uses such as protection, insulation, decoration and so on. It can make the parts and components much more durable as well, allowing them to last for far longer.

There are several types of metal coatings as follows:
Aluminum coatings. For these coatings, hot-dipped aluminum silicon and hot-dipped coating of pure aluminum are available. Both offer excellent protection and resistance against corrosion. It is ideal for applications involving heat panels, automobiles, shields and more because it has a heat resistance of 1250 degrees Fahrenheit and a heat reflectivity of 900 degrees Fahrenheit. It also has longer lasting protection from atmospheric corrosion, so it is ideal for a number of applications in the automotive, aerospace, medical and optoelectronic industries.

Aluminum coatings
Aluminum coatings

• Zinc coatings, also known as galvanized coating, is one of the most commonly used as well as popular metal coatings around. Metallic zinc can be used to carbon steel. Designed to control corrosion, the process is achieved by hot-dip galvanizing, which essentially means the metal is immersed into melted zinc to get the desired coating. Zinc is a good deterrent material for oxidation. But if abrasions happen, galvanic action ensures the surface is still protected. This way, coatings can keep the surface around holes as well as edges protected.

Zinc coatings
Zinc coatings

• Ion Plating. Thermal evaporation is a good method to create the coating. Processes involved in the production of this coating include electroplating and thermal evaporation along with ion and atom sputtering as well as ion implantation.

• Electroless coatings, also known as conversion coatings, refer to coatings generated from conversion processes like the black oxide. This can improve corrosion protection. It starts off with the oxidization process for metals, resulting in a blacking solution that obstructs the formation of rust. This then develops into a micro porous surface.

There are many benefits of metal coatings:
The metal surface needs to be pre – cleaned and roughened before spraying. The spraying process is simple, and basically not limited by the size and shape of the equipment and parts. Good metal or alloy coating can be obtained according to the requirements.

With these metal coatings, we can protect our components and parts from corrosion, physical barriers and oxidation. This provides us with durable performance, allowing us to save up on costs for premature replacements, effectively cutting down on manufacturing expenses. With the right coatings, we won’t just get better longer-lasting performance, we get to enjoy cost-savings as well.

For more information, please visit http://www.samaterials.com/406-thermal-spraying-material

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