Magnaglo® 410HF is a is a ready to use fluorescent MPI ink. It is an oil-based, ready-to-use fluorescent ink for wet method magnetic particle testing and gives clear bright yellow/green indications when viewed in a darkened area under UV(A) of peak wavelength 365nm. 410HF consists of a suspension of magnetic particles in a high-flash, low-odour petroleum distillate.
Used in conjunction with suitable magnetising equipment, 410HF inks will locate medium-fine surface and slightly sub-surface defects such as shrink cracks, welding defects, grinding cracks, quenching cracks, and fatigue cracks. 410HF is widely regarded as the test material of choice for aerospace applications.