Powder Coating

What is Powder Coating?

Powder coating is a finishing method that adds both an aesthetic and a protective component to various surfaces. The technique has become increasingly popular due to its durable finish, allowing for maximised production, improved efficiencies, and simplified environmental compliance. Additionally, it does not require any solvents for application. Instead, using electrostatic spray deposition (ESD) to apply the powder coating to a metal substrate.

How does powder coating work?

Powder coatings are formulated on polymer resin systems, combined with curatives, pigments, leveling agents, flow modifiers, and other additives. Following this, the ingredients are melt mixed, cooled, then ground into a fine powder. Generally, the next step is to apply the powder coating using the electrostatic spray deposition (ESD) process. This works by applying an electrostatic charge to the powder particles, which are then attracted to the grounded part.  

Following the powder coating application, the substrate enters a curing oven, where the added heat creates a chemical reaction. The result of this process is long molecular chains, resulting in high cross-link density. Simply put, the result is a durable coating that is very resistant to breakdown. 

Typically, powder coating is used on metal substrates. But, it can also be used on non-metallic materials such as plastic. However, in this instance the powder coating must be cured by UV rays.

Advantages of Powder Coating

Powder Coating is an advanced method of applying an aesthetic and a protective finish to surfaces. There are many reasons behind its growing popularity in both industry and consumers.

Durability

One of the biggest advantages to powder coating is the increase in longevity of the substrate. Powder coating is very resistant to extreme temperatures and environmental elements, therefore it protects against rust and corrosion. What’s more, powder coating is also highly resistant to scratching and chipping making it ideal for many industries. This durability can significantly reduce the cost of regular repairs and replacements. Furthermore, its impenetrable surface means it maintains its aesthetic appeal.

Environmentally Friendly

Another important benefit of powder coating is its level of friendliness to the environment. Whereas liquid paints contain significant amounts of pollutants, powder coating contains no solvents and releases negligible amounts, if any, of VOC’s into the atmosphere and can easily be disposed of in a landfill.

What’s more, powder coating is completely harmless. As a result, there is a marked reduction in nose, mouth and throat irritation.

Choice of Finishes

A great benefit of the powder coating method is the choice of finishes and the potential for customisation. It’s entirely possible to create custom colours, texture, and finish with few competitive options in terms of versatility and range.

Cost-effectiveness

Another main benefit of powder coating compared to alternatives is cost-effectiveness. Whereas liquid paint generally fades within a five year period, powder coating can last for decades, largely due to its durability and resistance to environmental elements.

Additionally, further money can be saved using powder coating as it doesn’t require any stringent environmental testing once the product is finished.

What Products Can Be Powder Coated?

Powder coating can be used to coat a large variety of materials. Generally, the most common material is metal, but other materials such as wood, plastic, composites, glass, and MDF can also be coated. However, it’s essential to consider whether the material can withstand the temperature it’ll be exposed to during the process. Some common products include:

Automotive Parts

The automotive industry commonly uses powder coating for parts such as hubcaps, bumpers, decorative accessories, and more. Additionally, powder coating is often used on engine parts to give them an aesthetic appeal and improve durability.

Appliances

Powder Coating is popular with the appliance industry as it’s resistant to corrosion and abrasion, as well as being aesthetically pleasing. It is regularly used in products such as microwaves, ovens, refrigerators, dishwashers, washing machines and more.

Building Materials

Powder coating is also highly beneficial within the construction industry as it’s resistant to general wear and tear and rusting. Not to mention its durability and high levels of resistance to extreme temperatures. Products include window frames, door frames, fencing materials, structural beams, stadiums, building facades and so much more.

Sporting Goods

Sporting goods is another industry that makes regular use of powder coating. Often you will see items such as golf clubs, bicycles, exercise equipment, ski poles, and much more with a powder coating finish as it can withstand large amounts of wear and tear.

Other Miscellaneous Products

Aside from the industries and products mentioned above, there are many other items that benefit from powder coating services. This includes children’s toys, furniture, pens, office cabinets, chairs, desks and the list goes on.

In fact, powder coating is the most used type of protective finish in the world and used in many day-to-day products.


Powder Coating Services From R&M Industries

At R&M Industries we offer powder coating services and finishes for a wide range of industries. Call us today to discuss your powder coating requirements on 01384 898765.


 

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