Dye-Penetrant.

Port Engineering Services offer our customers a dye-penetrant testing solution.

In this technique the surface of the material to be examined is flooded with a liquid dye which penetrates into any surface cracks or defects. After a suitable period, the dye is cleaned off and the surface sprayed with an absorbent “developer” which draws the dye from any defects indicating the presence of a defect. The technique is often employed on non-ferrous materials such as aluminium alloys, but can only locate surface defects.