Powder coating Flashcards
What is powder coating
Powder coating is a dry coating process applied as dry powder through an electrostatic process, then cured with heat. It is used mostly on industrial equipment as a metal finish.
Powder coating is
sturdy, flexible, cost effective finishings options
On what materials can powder coating be used?
Powder coating can be used on different surfaces, including metal, concrete, steel, and plastic. It’s suitable for both indoor and outdoor applications.
What is the first step in the powder coating process?
The first step of the powder coating process is preparation. This step determines how well the powder coating adheres to the metal surface. It involves cleaning and prepping the surface(various options), often using a degreaser and/or phosphate rinse, followed by a quick water rinse. Powder applied by spray gun and curing begins
What is powder coating made of?
Powder coating is based on polymer resin combined with pigments, curative, flow modifiers, leveling agents, and several other additives. All ingredients are melt mixed together, cooled, and then ground into a powder. Preheating achieves uniformed finish and cooling forms hard coating
How does powder coating differ from paint?
Powder coatings are different from paint in that they need an electric charge to work, while paint needs an adhesive.
What is one significant advantage of using powder coatings?
One significant advantage of using powder coatings is that once solidified, more layers can be added if thickness is desired. Thicker coatings mean longevity and increased protection. Additionally, powder coatings are suitable for metal because they repel corrosive materials, such as chemicals and water.
what does it eliminate
The powder coating process eliminates overspray wastage that may be experienced with sol vent-based paints.
What is used for the application process and why
An electrostatic paint sprayer is used for the application process. It imparts a positive electric charge on the powder and accelerates it towards the components through an electrostatic charge. The chemical bonding process strengthens the powder coating because once cured, the bonds solidify.
