The proliferation of non-linear loads such as variable frequency drives, rectifiers, induction furnaces, and LED lighting systems is making harmonic pollution a major headache for industrial plants.

A practical overview of pull-off adhesion testing for coatings on rigid substrates, with guidance on dolly selection, test interpretation, and PosiTest AT applications.

An overview of electrical porosity testing for finding pinholes and holidays in cured non-conductive protective coatings, including low- and high-voltage detector selection.

A practical guide to collecting, grading, and reporting loose dust on prepared steel surfaces using the ISO 8502-3 visual comparison method.

Using a coating thickness gauge helps identify wear on an OPC printer drum rather than relying solely on visual inspection of the surface. The service life of an OPC drum is often considered to have significantly declined when the coating has worn by approximately 5 to 15 μm. When the wear approaches half of the original coating thickness, the drum may be removed from service depending on the remanufacturer’s quality control procedures.