Advantages Of Powder Coatings

At the mention of paints, we usually think of the various coloured liquids meant for different applications. This is the most common because of its ease of production and application. There is another type of paint that comes in dry power which deserves our attention. The form and application results in favourable characteristics that make lots of manufacturers choose powder coating services over painting with liquids.

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Better for the Environment

For example, powder paints are much more eco-friendly compared to traditional paints. The latter is known to give off toxic gas which can affect the health of those who are exposed to it. This also contributes to air pollution. These gasses are called volatile organic compounds or VOCs. Sometimes they also contain solvents which are also harmful to people. Powders do not have these unwanted chemicals. Companies that wish to comply with the regulations of the US Environmental Protection Agency can use powder coating as a viable alternative.

Doesn't Run When Thick

Another problem with liquid paint is that you have to be very careful when applying it. Get one spot too thick and you will likely get an unsightly run. This will require time and effort to correct. It happens so often that people don't even bother checking for them and just let them be, even if the outcome is less than perfect. This is not a problem with powder coating as everything stays even all the time. Get multiple coats for a thick protective barrier for the surface.

Easy Styling

It is also much easier to creative various styles and effects using powder. Other coating processes simply do not have the flexibility afforded by this material. For instance, stencils may be used to put brand logos on the side of a vehicle. This will be a breeze to accomplish with even more polished results that what other paints can offer.

Powder Coating Process

There are different ways to go about the powder coating process. Typically, you would need to start by sourcing the right materials for the job. The surface material is crucial as it will determine the kind of powder coat that you will use. They have unique formulations with each being suitable for a specific kind of metal surface.

Once you have made your picks, you can then proceed to the disassembly of the item to be painted. Take out the parts that you do not want or need to coat, especially those that are supposed to be removable like bolts and nuts. Seal off the surfaces that must remain untouched.

Clean the metal surface with the appropriate tools. There might be dirt and dust build-up that you will need to remove. Do something to get the rust off and expose the bare metal underneath. If there is oil or grease, then use a light chemical cleaner. Sanding might also be needed in some cases to smoothen the surface.

The surface is finally ready to be coated in powder. A compressed air sprayer is used to blast powder onto the metal which then clings to the surface thanks to electrostatic charge. For household experiments, dusting the powder directly can be enough.

Lastly, the powder is heated to 350 degrees to 375 degrees Celsius for about 10 to 15 minutes. This melts the powder which causes the individual particles to bond together and form a strong coating on the surface. An oven, a heating lamp, or a flameless heating source is used for this purpose.