The process of manufacturing powder coatings is a relatively complex process that must be carefully controlled to ensure a high-quality final product. Powder coatings are manufactured in a multi-step process of pre-mixing, extrusion, and micronization. Basically, materials are blended, melted, cooled, and then pulverized. This blog will focus on extrusion, the second step in the process.
Extrusion Process: this involves the powder being heated up, which activates the resin and hardeners. The consistency of the powder is changed to a liquid, which is then cooled and hardens into a sheet. This sheet is then broken up into small chips.