A powder coating gun is the main instrument employed in the powder coating process, a surface finishing method. It involves putting a dry paint polymer on the item you need to paint and curing it until the paint sets. Thermoplastic and thermosetting are two different forms of powder coat material, and distinct powder-coating guns must be used per these techniques.
Thermosetting powder coating device has different methods to ensure the paint glues to the substrate. Although those guns are safe to utilize and don’t pose many health issues, some precautions still require measuring the user’s safety.
There are methods to aid lessen these issues, such as using a top-notch quality powder coating which keeps the electrostatic charge off the powder coating gun well, most times if you do not have the coverage you need with the Corona powder coating gun, you could consider the tribo style.
Tribo-Style Powder Coating Guns
They charge the epoxy powder due to friction once powder elements rub a conductor or insulator within the gun. You can accomplish the desired charge by removing the powder’s electrons, thus yielding positively charged powder.
Since there’s no natural electrostatic field, these charged powder particles move to the grounded section, and they’re free to settle in a thin layer to a section and may coat small, recessed regions. However, the tribo gun has two weaknesses. First, the gun covers half the velocity of the corona-charge gun, and it operates excellently with epoxy powders.
A tribo disk has a non-rotating disk placed vertically in a Wloop, and sections are conveyed via the loop. In contrast, the tribo disk moves up and down, adding overlapping powder-coating layers on the sections’ surface. The method of tribostatic charging is used, and the tribo disk creates a horizontal, uniform spray pattern of around 2.5 feet in diameter.
Corona-Style Powder Coating Guns
These are among the most typical in the application process. The powder coating guns can produce a low-amperage, high-voltage electrostatic field in the product and coated electrode. The powder particles which pass via the tip’s electrode ionized electrostatic field are charged and placed on the part’s electrically grounded face.
Corona guns carry some disadvantages. The gun makes the device challenging to coat recessed regions and tight edges with powder—utilizing a top-quality powder that keeps the top-voltage charge controls this issue. Second, coating apart again that’s been cured already is problematic with this spray gun.
You can use corona bells in applications whereby you must fast-coat huge flat regions. If you need to spray much more powder quickly onto a flat surface, you need this preferred application gadget. Typical bell uses are outer appliance shells and automotive vehicle parts. The charging method is the exact as applied in the Corona guns, with the same effect.
Take Away
Due to its looks among businesses seeking novel methods to apply paint finishes to wares, powder coating technology has advanced highly over the past few decades. Now, powder-coating guns come in various designs and challenging technologies to make it easier for painters. The powder coatings, too, come in different forms and colors.
Check Ramseier Koatings’ site for the best-advanced powder coating technologies. They are an expert powder coating organization, and their range of powder coating devices covers most industrial applications, such as plastic and metalworking.
