Powder coating is one of the best methods you can use for your metal fabrication. While painting has been a traditional approach for a long time, it has certain demerits that powder coats can cover. The use of powder coats for metal finishes offers a more advanced approach and brings increased durability, a high-quality appearance of your structure and a reduced environmental impact.

Learn some basic facts about powder coating before your next construction project.

What Is It About?

The process of powder coating involves the application of a dry coat to come up with a well-furnished metal finish. The dry powder is applied through an aggressive electrostatics process. After the application is done, it is then cured with an estimated heat temperature.

Due to its flexibility, the metal powder coating process can be used for both indoor and outdoor applications. Hence, it offers you one of the most cost-effective finishing options for your building construction.

The Types

There are two main types of powder coatings: thermoplastics and thermosets.

Thermoset powder coatings are not thick in nature. Basically, they become soft and easy to flow when heated. The process of heating is employed to eliminate chemical bonding and make them less viscous. In addition, it makes the powder coat reversible and reusable, reducing wastage and costs.

Thermoplastic powder coatings are generally thick. Due to this, they are durable compared to their thermoset counterparts. Most industrial settings prefer thermoplastic powder coatings for metals such as auto parts.

How to Apply

For effective function, you need to apply the powder coat properly. The first step is the preparation of the metal surface, and probably the most important. Preparing the surface of the metal ensures the coat adheres well. It removes any instances of dirt, dust, oil or any other debris that could interfere with the coat during application. Several methods can be employed to clean and prep the surface before the coat is applied. Some of these include using a phosphate rinse or a degreaser. Once it is clear, you can then apply the coat using a spray gun. The curing process begins immediately after the powder coat has been applied.

How the Metal Powder Coat Works

The metal powder coat is made from a resin combined with flow modifiers, pigments, levelling agents, curatives and many other additives. Once put together, they are exposed to extreme temperatures and melt. They are then cooled and ground into powder form. Basically, the process of preheating ensures a uniform finish while cooling prevents the formation of a hard coat.

For more information on metal powder coating, contact a professional near you.