Zinc coating features: If the maximum working temperature is less than 120 ° C, this type of coating is adequate. The costs are lower and the magnet is protected against corrosion in the open air. It can be glued to steel, although a specially developed adhesive must be used. The zinc coating is suitable provided that the protective barriers for the magnet are low and low working temperatures prevail.
The usual magnetized direction of block magnets is through thickness, that means that the N-S poles are on the big flat surfaces.
