Why should dry developer be applied in inspection?

Applying dry developer in inspection is primarily aimed at creating a light dusting that covers all surfaces. This application method allows for the even distribution of the developer across the material being inspected, which aids in highlighting any defects or imperfections that may be present. The dry developer adheres to any residues or materials on the surface, making them more visible and enhancing the contrast between the flaw and the substrate. This visibility is crucial, as it allows inspectors to effectively evaluate the quality and integrity of the surface being examined.

While ensuring penetration or increasing the rate of penetration may pertain to different inspection techniques or materials, the primary purpose of a dry developer is to provide a uniform coating that enhances visibility and clarity during visual inspections. This facilitates a more thorough examination and better assessment of the inspection area.