What is the production process of coated aluminum coils/sheets?
- Jul 17, 2018 -

Coil coating is an industrial process used to produce color coated aluminum coils/sheets. Color coated aluminum coil, also known as painted aluminum coil, coated aluminum coil. There are different types of coatings: anodizing, paint, liquid or powder coating. This method is used to promote the use of aluminium in the most environmental conditions.


 According to different operating environment, the user can choose different resins, such as silicone-modified polyester, PVC plastisol, polyvinylidene chloride, etc. for the coating used in this coated aluminum coil. High quality color coated aluminum coil can have long last using period, so the producing process is the key of quality assurance.




The steps take place on a modern coating line are as below:

· Stitching the strip to the previous coil

· Cleaning the strip

· Power brushing

· Pre-treating with chemicals conversion

· Drying the strip

· Applying primer on one or both sides

· Curing (often between 15 to 60 seconds!)

· Cooling the strip

· Finish coating on one or both sides

· Second curing

· Cooling down to room temperature

· Rewinding of the coated coil



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