Different Types of Protective Coatings You Can Use On Steel
One of the more popular materials used in industrial applications is steel. This is largely due to how strong it is, thus making it suitable for an array of applications. However, despite its innate strength, steel is highly susceptible to corrosion. If it is not protected from this, its structural integrity can be severely compromised prematurely. Here are some of the different types of protective coatings you can consider for your steel structures.
Two-component epoxy protective coating
This type of epoxy protective coating is referred to as two-component because it provides both a primer as well as a finish to the steel surface. The combination of the two work to prevent the metal substrates in the steel from oxidizing and eventual corrosion. Two-component epoxy is also quite durable. This makes it friction resistance so you do not have to worry about your steel surfaces acquiring unnecessary chips and cracks. The epoxy also provides protection from abrasion as well as drastic changes in temperature. It should be noted though that constant exposure to harmful ultraviolet rays will cause the eventual deterioration of the epoxy. Therefore, structures coated with this should not be left out in the sun for prolonged periods of time.
Galvanized protective coating
If your steel structure is going to be located in close proximity to salt water, or of it will be exposed to prolonged lengths of time in the scorching sun, then you should consider a galvanized protective coating. This process involves the coating of the steel surfaces using zinc. There are several reasons why galvanizing would be an ideal option when considering protective coating. Firstly, the zinc acts as a sacrificial layer on the steel surface. This means in the event of corrosion, the zinc would withstand the worst of the rust, leaving the steel unaffected. Secondly, galvanized coatings tend to last for a significant period of time. This longevity means you will not have to worry about reapplying a protective coating on your steel structure for a while. Lastly, the galvanizing process provides your steel with complete protection against saltwater and an array of other caustic substances that it may come into contact with.
Powder coating
This type of coating comprises specialised pigmented resins that are electrically applied onto the steel surface. The particles in the powder paint are electrostatically charged. This electric charge is what makes the particles become highly attracted to the steel surface. The particles are then adhered into place using a curing process that uses high temperatures. One of the main benefits of powder coating is that it forms a strong barrier that prevents the onset of corrosion. Additionally, you can opt to get powder coating in a myriad of colours, making it an ideal choice for individuals looking for a decorative protective coating.