DP-40 Dye Penetrant

Use DP-40 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.


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Product Information

Penetrant System Category:

Visible Type 2

Solvent Removable (Method C)

Post-Emulsifiable (Methods B&D)



Ardrox 996PB

Magnaflux SKL-SP2



QPL & SAE AMS 2644

MIL-I-25135 Revisions C, D, & E

ASME Code NDT, Sec V