Powder coating is a kind of sprayed coating that's applied as either a dry, powder-like liquid or an oily wet powder. Unlike traditional liquid paint that's delivered through an evaporating solvent via an applicator, powder coating is usually applied electrosthetically and then cured with ultraviolet light or by heating. The end result is a tough, paint-like finish that's similar to paint itself.
In its most basic form, powder coating occurs when a gas or alcohol is sprayed onto the surface to be coated. While these two substances are commonly used for their UV protection, they're not the only substances that can provide this protection. Solvent spray coatings can also be created from solvents such as turpentine, urethane, petroleum-based urethane, xylene and ethyl acetate. The resulting layer thickness is often thicker than conventional paint because the UV rays don't penetrate as deeply. Additionally, the thinning is consistent regardless of the actual color of the substance being sprayed, so thinned down paints don't have to be matched to your original color in order to be effective.
Many industries use powders because of the various benefits they offer. For example, some industries use them to create tough sealants that'll prevent moisture from seeping into their products and supplies or to prevent corrosion of metals that aren't treated. Others, though, use them to create thin layers of protective coatings that'll deflect the ultraviolet (UV) light that comes off many pieces of equipment, furniture and building materials. Whatever the final application, powder coating offers a range of advantages and drawbacks. Be sure to see more here!
One of the biggest benefits of powder coating involves the fact that it creates an extremely fast drying time. Because it doesn't have any drying times associated with it, powder coated materials are well suited for spraying products immediately after being applied. This saves a customer a tremendous amount of time during the manufacturing process, which will ultimately lead to less wasted materials and potentially better profits from the finished project. Additionally, applying it over-spray is much less messy than applying it using a brush or sponge, meaning that there's less work for the employee preparing the project for a paint job. Discover more facts about coating at https://www.britannica.com/technology/surface-coating.
One of the drawbacks to powder coatings is that the overall effect pigment density can vary significantly from one product to another. If two different powders with different densities are used, the resulting coating could have a dramatically different effect on how the material looks overall. In other words, if two different polymers with different densities and emulsions are used, the outcome of the coating could be quite different than if the same polymers were used. Powder coatings are also more susceptible to contact with heat and water. Although mixing and matching powders of varying densities is possible, a mistake in mixing the chemicals can result in a different effect pigment density. Know more about Powder Coating here!
There are a number of options available to improve upon the quality of powder coating projects. Powder coatings can now be made more consistent by using a pretreatment agent, and some manufacturers recommend that pretreatment is used in all but the most extreme cases. High temperature fluctuations can also greatly affect the stability of the finished surface, and certain coatings have been developed to help prevent heat damage from developing. These advancements make powder coating an even more cost-effective option for many companies wishing to invest in their company's image.