CircleSafe 820A is an aerosol can of black magnetic particles, premixed with liquid Wetting Agent in water media. It is designed to be used with visible light inspection for detecting discontinuities found in finished products and structural fabrications. Higher particle concentration provides heavier indication buildup for easy NDT and inspection. CircleSafe is packaged in a carbon dioxide propellant for odor-free, fume-free, non-combustible inspection.