metallon consultants carried out a study on 55% Al-Zn coated strip to define the origin of zones with dull aspect.
The study included observation of normal and affected samples with stereo microscope, metallography of transverse and longitudinal cuts, analysis of coating and base metal and direct observation of samples in the Scanning Electron Microscope, with EDS analysis. Salt spray tests were carried out, too. To request similar studies, contact asistencia@metallon.com.ar