MG-410 Wet Method Fluorescent Particles - 2 lb. Jars / Case of 6Magnaflux MG 410 Fluorescent Magnetic Particles MG 410 is an ultra bright fluorescent magnetic particle powder for locating small, medium, and large discontinuities. These particles provide clear, ultra bright, fluorescent green indications under UV light with minimal background. MG 410 is designed for use in water or oil baths for wet method fluorescent magnetic particle testing. MG 410 is fluorescent powder which can be mixed with either water or