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How is powder coating produced?

powder stripes

So how are the ingredients put together to make a coating?

There are three stages in the production of powder coatings. 

  • Pre-weighing (premixing) – this involves the weighing and mixing of all the raw materials mentioned.


  • Extrusion – this involves the powder being heated up, which activates the resin and hardeners.  The consistency of the powder changes to a liquid.  Then it's cooled, which hardens the mixture and turns it into a sheet.  This sheet is then smashed up into small chips.


  • Micronising – the big powder chips are then fed into a grinding machine, which grinds the chips down into a fine powder.  This powder is then sieved to make sure no large particles contaminate the powder.