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   Home : HADCO Services : Comprehensive NDT : Magnetic Particle Testing

The Dry Method of Magnetic Particle Testing reveals indications more readily than they would appear to the naked eye.  Inspectors lightly dust the surface of the magnetized part with specially-designed iron powder that "sticks" to discontinuities due to magnetic flux leakage, creating a powder build.

 Without Dry Powder

 With Dry Powder and Contrasting Paint

The Wet Method of Magnetic Particle Testing is more sensitive to fine surface and slightly subsurface discontinuities.  HADCO uses only MAGNAFLUX 20B Water-Based Wet Fluorescent Magnetic Particle Solution and ZB-100 Blacklights for testing.

 Cracked Crane Hook

 Crack on a Master Bushing