DP-40 is a non-water washabale visible penertant used to locate cracks, laps, pores, lack of bonding, and similar surface flaws in any insoluble, nonporous substance including both ferrous and nonferrous metals, ceramics, glass and many plastics. Referred to as the “visible dye penetrant” method or “color contrast” method inspection for weld inspection.
Penetrant System Category:
Visible – Type 2
Solvent Removable (Method C)
Post-Emulsifiable (Methods B&D)
Specifications:
QPL SAE AMS 2644
ASTM E165, E1417
