CircleSafe® 800a uses or latest generation Mi Glow® 800 particles which have exceptional sensitivity, uniform size, and ideal magnetic characteristics for fluorescent magnetic particle inspection. CircleSafe® 800a is a fluorescent yellow/green powder premixed with our petroleum carrier fluid CircleSol M. . CircleSol M ensures excellent particle mobility and surface coverage to allow for a reliable inspection. CircleSafe® 800a is designed to be used with UV-A light to detect disontinuities typically found in the NDT of forgings, castings, welds, and piping.