What is Powder Coating?
Powder coating is a dry finishing procedure used to improve the physical and mechanical attributes of custom metal parts. Steel finished with a powder coating provides a high-quality, durable finish which can increase production and efficiency for facilities who rely on equipment to get the job done. Utilized across all industry sectors from automotive to electrical, powder coating finishes can in some cases also support compliance with environmental and safety regulations.
How does Powder Coating Work?
Powder coatings contain polymer resins mixed with curing agents, colors, leveling agents, flow modifiers, and other ingredients. These elements are melted together, cooled, and milled into a fine powder that resembles baking flour. To complete the powder coating process, a free-flowing, dry, thermoset, or thermoplastic material is applied to the surface of the metal part being protected. This results in a long-lasting finish.
Powder Coating Procedures
The powder coating process consists of several steps including surface preparation, application, and curing stages.
1. Surface Preparation
It is critical to clean and prepare the substrate surface before adding the powder coating material. This step is crucial as it can alter adherence and overall quality of the finished product including safe access systems such as industrial stairs.
2. Application
Electrostatic deposition, or ESD, and fluidized bed powder coat are the two most common powder coating processes used by those in the manufacturing industry. This application method is regarded as a better alternative to the hot-dip galvanization process.
3. Curing
The curing stage can include a variety of steps, depending on the process. Curing ESD-coated items in a powder curing oven is required. In some cases, preheating parts fixed in fluidized beds will ensure an ideal curing environment.
Advantages of Powder Coating
Powder coating has several advantages when compared to painting. Known for its durability as well as exceptional corrosion and abrasion resistance, it is much safer when heated or electrified. In contrast, solvent-based or liquid coatings such as paint frequently produce hazardous, volatile chemicals. Powder coating is available in a variety of coating materials and is an inexpensive finishing choice that produces high-quality results.
Powder coating is one of the most effective and affordable finishes available to manufacturers. Contact us to learn more about how powder coating finishes can improve your fall protection and fall prevention safety plan.
