Magnaglo® 14A is a dry, free flowing, brown magnetic powder which fluoresces bright yellow-green under black light (wavelength of 365 nanometers). 14A is intended for use in high sensitivity wet method magnetic particle inspection and may be suspended in either a petroleum-based vehicle (oil) such as Magnaflux®/Magnaglo® Carrier II, or in water. When water is used as a vehicle, conditioning agents such as WA-2B, or WC-1 are required. The conditioning agents improve particle suspendibility and mobility, part surface wetting, and nominal corrosion inhibition. 14A's fluorescent color contrasts sharply with the purple background of clean metal surfaces when viewed under black light in a darkened area.