Magnetic Powders can only be used in combination with a Magnetic Applicator (Art.-No. 150). The head of the Applicator contains a magnet which can be withdrawn by lifting the chromed pin on the top to deactivate the Applicator. Powder can be distributed with a normal brush.

The Magnetic Powders contain, apart from the pigments, special kinds of iron particles, which, when covered with pigment, form a brush-like of powder. The Applicator is drawn over the surface to be examined, whereby the head of the Applicator should touch the surface.