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.
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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.
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Cracked Crane Hook |
Crack on a Master Bushing |
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