Quality control for metallization processes
28.03.2017
The final results of the metallization process depend on:
- the status of the surface after the blasting operation (SA 2,5 – SA3)
- the Dew Point
- the way in which the procedure respects the recommendations with respect to the waiting time between different activities: blasting, metallization and painting
Knowing the cleanness degree of the surface after blasting is therefore essential because its level is crucial for insuring the adherence of the layers that are supposed to be applied afterwards on the metal part. In the end the cleanness degree of the surface to be treated directly influences the way in which the anticorrosive protection will function on long term.
In order to check it one could use the ISO 8501-1:2007 – Elcometer 128 standard.
Afterwards, during the metallization process it is recommended to control the thickness of the applied layer because a to thin one will not guarantee the anticorrosive protection while a to thick one would imply extra costs with materials. Controlling this parameter is really easy when using the Elcomter 456.
