Which action should be taken when using dye penetrant to enhance results?

When using dye penetrant testing, ensuring complete surface preparation is crucial for achieving accurate and reliable results. This preparation involves thoroughly cleaning the surface to remove contaminants such as dirt, grease, and other foreign substances that might obstruct the penetration of the dye into any cracks or defects present. A clean surface allows the dye to penetrate more effectively and ensures clear visibility of any indications that may arise during the inspection process.

Effective surface preparation helps guarantee that the dye can enter any discontinuities without interference. If the surface is not adequately prepared, it may lead to missed defects or false indications, thus compromising the integrity of the inspection results. Therefore, prioritizing complete surface preparation is essential for enhancing the efficacy of dye penetrant testing and interpreting the results accurately.