Powder
Coating

Powder coating is one of the most advanced coating processes available provides the ultimate finish for durability and longevity. Powder coating is a method of applying a decorative and protective finish to a wide range of materials and products.

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Powder coatings are based on polymer resin systems, combined with curatives, pigments, leveling agents, flow modifiers, and other additives.  These ingredients are melt mixed, cooled, and ground into a uniform powder similar to baking flour. A process called electrostatic spray deposition (ESD) is typically used to achieve the application of the powder coating to a metal substrate. This application method uses a spray gun, which applies an electrostatic charge to the powder particles, which are then attracted to the grounded part. After application of the powder coating, the parts enter a curing oven where, with the addition of heat, the coating chemically reacts to produce long molecular chains, resulting in high cross-link density. These molecular chains are very resistant to breakdown. This type of application is the most common method of applying powders. Powder coatings can also be applied to non-metallic substrates such as plastics and medium density fiberboard (MDF). Sometimes a powder coating is applied during a fluidized bed application. Preheated parts are dipped in a hopper of fluidizing powder and the coating melts, and flows out on the part. Post cure may be needed depending on the mass and temperature of the part and the type of powder used. No matter which application process is utilised, powder coatings are easy to use, environmentally friendly, cost effective, and tough!

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Powder coating is a durable and tough finish designed usually as a cosmetic finish, on top of either electropainting or phosphate, and is supplied in a range of colours. Normally available inside 24 hours, or 48 hours with e-coat.