How are Powder Coatings manufactured

How are Powder Coatings manufactured?

1. Formula: No powder coating is like the other - just like the different requirements for powder coatings. Henceforth, even prior to production, the right recipe is needed. This can be specially adapted according to customers and usage.
 

2. Weighing: In the following step, the ingredients are weighed out correctly into a container. Differences in density and grain size do not play a role for the time being.
 

3. Mixing: The weighed raw materials are then mixed both horizontally and vertically using a special machine. The speed of the mixing tool and the mixing time are precisely defined.
 

4. Extrusion: The mixture is now melted in the extruder. The aim of the extrusion is to create a homogeneous mass - this is achieved with heat and the shearing forces generated in the machine.
 

5. Cooling: After the mass exits the extruder, it is cooled on a cooling belt and rolled out. The solid mass is then broken up into small chips by a shredder.
 

6. Grinding: In the first step, the now hardened, cooled extrudate is broken into rough chips (10 to 20 mm) and then ground into powder coating in the fine grinding step.
 

7. Sieving: Before the powder leaves the mill, coarse particles and fine parts are filtered out of the mixture using sieves and suction.
 

8. Filling: The finished powder coating is then filled by weight and packaged in airtight containers.