Ceramic Disc Magnets provide real value because they are inexpensive, moderate in magnetic strength, and they are easily magnetized in a variety of formats. Ceramic magnets offer good corrosion resistance and do not require a coating or plating. They are able to withstand heat reasonably well and most often used in manufacturing and as the magnet in magnetic assemblies.
Ceramic disc magnets do not look metallic and their color is dark charcoal gray. They are a great value when you are looking for a low cost magnet that has good holding strength.
There are certain ceramic disc magnets that can be magnetized with several poles on one face that will give it stronger holding strength for that surface.