7HF BLACK VISIBLE MAGNETIC PARTICLE
7HF prepared bath is intended for spot inspection for difficult to process situations where bulk processing is impractical. 7HF is supplied in aerosol containers only.
7HF is composed of 7C Black Magnaflux® magnetic powder suspended in a low volatility mineral oil.
METHOD OF APPLICATION
Aerosol spray is the only possible method of application. First, make sure that the inspected surfaces are clean and dry. For permanently magnetized parts, shake can until agitator rattles; cover surface with spray. When using the continuous magnetizing method, fix the part in the magnetizing unit, cover the surface quickly with 7HF Black spray, and immediately magnetize the part.