ZChek NF – Red Colored Non-fluorescent Magnetic Particles


NF Red is a red magnetic powder concentrate designed for usage in a non-fluorescent wet method preferred for good contrast on gray, black, or dark surfaces.

NF Red provides strong contrast on most metal surfaces during dry method mag particle testing in visible light. It is ready-to-use for visible light flaw detection of surface and slightly subsurface discontinuities in ferrous metals.


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