Durability, Beauty, Reliability & Savings
The powder coating process was invented around 1945 by Daniel Gustin (US Patent 2538562), and brought into popularity starting in the 1960s. Today, powder coating represents more than 15% of the entire industrial finishing market because of several distinct reasons:
- safe and eco-friendly – it contains no solvents and release very little “volatile organic compounds” (VOCs), so pollution control equipment isn’t necessary
- highly-durable and extends the life of your goods for many years – the finish provides a thicker coating without the running or sagging, or the appearance distortions between horizontal and vertical, sometimes associated with wet spray paint
- there are a vast array of applications and specialty effects that are just impossible or not available through other coating processes
- while a “rattle can” spray paint might suffice for a quick, small-scale job, powder coating offers professional scale capabilities that save capital costs and time
- the cure-times are significantly faster than with wet spray paint or other applications
More and more companies specify powder coatings for a high-quality, durable finish, allowing for maximized production, improved efficiencies, and simplified environmental compliance. Used as functional (protective) and decorative finishes, powder coatings are available in an almost limitless range of colors and textures, and technological advancements have resulted in excellent performance properties.
How It Works ...
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 utilized, powder coatings are easy to use, environmentally friendly, cost effective, and tough!
Why You Should Choose Us ...
Our team provides superb craftsmanship for the most affordable price in the region. If you want the best results for your money, you’ve found the right place. Our goal is produce nothing short of the results you are looking for, so we stand behind our work. We want you to be fussy, because we are.