What is Powder coat and Why Powder coat?
What is Powder coat?
Powder coating is a type of dry coating, which is applied as a free-flowing, dry powder. The main difference between a conventional liquid paint and a powder coating is that the powder coating does not require a solvent to keep the binder and filler parts in a liquid suspension form. The coating is typically applied electrostatically and is then cured under heat to allow it to flow and form a "skin." Powder coating is a method of painting products that uses a powdered plastic resin which is melted onto the part. At State of the Art we coat both ferrous and nonferrous metals using "Electrostatic Spray" equipment. The powder may be a thermoplastic or a thermoset polymer. It is usually used to create a hard finish that is tougher than conventional paint. Powder Coat is more durable than conventional painting and has a smooth and shiny finish it will not fade and chip like paint does and last much longer. Powder coatings emit zero or near zero volatile organic compounds (VOC).
Powder coatings can produce much thicker coatings than conventional liquid coatings without running or sagging. Powder coating production lines produce less hazardous waste than conventional liquid coatings. Powder coated items generally have fewer appearance differences between horizontally coated surfaces and vertically coated surfaces than liquid coated items.
A wide range of specialty effects is easily accomplished which would be impossible to achieve with other coating processes. Powder coat is a lot more durable and does not fade out in the weather like paint will.
Go Green with powder coating!
Why Powder coating?
Powder coatings act as a barrier to corrosive chemicals and moisture, which are essential components of the corrosion process. Zinc-rich types, which provide a sacrificial metal, produce longer life and are often used as primer coats when severe conditions demand an extra measure of protection
Chemicals are not limited to chemical manufacturing plants. They can be cleaners used around the home and office; lubricating oils, gasoline and anti freeze used in the garage as well as many other compounds which may come in contact with a coating during a manufacturing process or in subsequent end use. All should be identified during the coating selection process to insure adequate protection
Electrical Insulation Resistance:
Most powder coatings are excellent electrical insulators. Some, however, are specifically designed and tested for use on electrical components. It is important to define the dielectric strength required as well as any other related electrical property. Frequently trade groups or organizations such as Underwriters Laboratories spell these out as “standards”.
Coatings are frequently subjected to elevated temperatures for constant or intermittent periods while in use. Higher temperatures generally cause some degradation, which may reduce the useful life of the coating. Despite this fact, successful powders have been developed for barbecue grills and cookware, under the hood automotive and many other high temperature environments.
Powder coatings generally provide outstanding abrasion resistance. Store and library shelving, home and office furniture are just a few of the markets where powder's superior abrasion resistance has been recognized.
Like abrasion resistance and hardness; impact resistance is a measure of the coating's toughness. Powder coatings are formulated to withstand blows from hammers and wrenches on an oil rig, stone damage to lawn mowers and automotive components as well as the everyday wear and tear of children's toys, furniture and playground equipment.
Going Green with Powder coating!
Solvent-based paint processes produce both air and water pollutants and water-borne coatings produce hazardous waste. The air pollutants contribute to photochemical smog.
There are two ways to reduce pollution: by installing expensive equipment to treat the pollutants produced; or by eliminating the source of the pollutants. Obviously the second method is more economical. Equipment installed merely to prevent the discharge of pollutants to the environment represents an extra expense which contributes nothing to profitability. Production processes which minimize the production of pollutants at their source are a more positive solution and are less expensive in the long run.
Powder coating eliminates the air and water pollutants produced by solvent paint lines. As a bonus, working conditions are cleaner, healthier and safer.
Nevertheless, although everyone is more aware of emissions problems and anti-pollution laws and regulations are becoming tougher, there are two better reasons for powder coating. As we shall see, powder coatings are superior in quality to solvent-based paint coatings.