DP-50 is water washable visible penetrant used to locate cracks, laps, pores, ack of bonding, and similar surface flaws. DP-50 can be used on nonporous parts including both ferrous and nonferrous metals, ceramics, and glass and some plastics. Referred to as the visible dye penetrant method or color contrast method of inspection and can be used for weld inspection.
Penetrant System Category
Visible – Type 2 Water-Washable (Methods A&C)
QPL SAE AMS 2644
Method C, Method A
ASTM E1417, E165