Maintenance and Cleaning of Powder Coating Explained

Powder coating refers to a combination of metal particles and phosphates mixed to create a fine, powdered mixture that can be baked onto metal surfaces. This mixture can be used on various metals such as iron, aluminium and steel to help them stand up to corrosion and last longer. Essentially, powder coating slows the process of rusting, preventing iron from being eaten away when it is exposed to a corrosive environment. Additionally, it prevents the accumulation of harmful deposits directly on the surfaces of the metal, thus maintaining the structural integrity of the material. Powder coatings need to be cleaned and maintained if you want them to serve you well. Here is a detailed explanation of what this process involves:

Cleaning Technique

It is important to understand that powder coatings are organic elements that must be kept from decay and degradation. Usually, the cleaning involves using an appropriate solution applied over the powder coating followed by scrubbing with a soft cloth, sponge and nothing harsher than a brush a brush with soft bristles. Tough bristles can gradually wear off the coating or cause chipping and expose the surface of the metal to corrosion.

Preferably, you should go for mild soap solutions that easily lather with water when cleaning the powder coating. You can also throw some warm water in the mix, especially where the coating has been affected by oily dirt. Avoid harsh chemicals containing chlorine, abrasive cleaners, ketones and esters. All these "harsh" chemicals can lead to staining, wearing or severe damage of the powder coating.

Pressure Cleaning   

You are also at liberty of using pressure cleaning to give your powder coating the sparkle and clean it requires. It is actually the best way of cleaning your powder coating on metals used on both indoor and outdoor structures. However, there are a few things you need to keep in mind when using pressure cleaning to maintain your powder coating. Always set the machine to the "low-pressure setting" because too much pressure can lead to chipping. Moreover, make sure that the water in question has been properly filtered to prevent staining after you have cleaned the surface.


Cleaning your powder-coated surfaces presents the perfect opportunity for inspection and identifying any sections in need of a repair. For minor repairs, you can use acrylic topcoats to fill in chipped areas and protect the underlying metal surface. When buying, make sure that you match the colour of the top coat with that of the powder coating. Major repair works will require you to call in a professional.