To decide on the right type of magnet, you must know the purpose for which you need the magnet. To avoid unwanted surprises later, it is advisable to define exactly what the magnet is used for, as there are also differences in this case. For example, one or the other type is recommended, if the magnet, needs to withstand high temperatures, or this factor is not necessarily relevant. The same happens with outdoor magnets, they are very different from those used in the office or at home.
Ferrite (Left) and Neodymium (Right)
In comparison, a neodymium magnet of the same size as a ferrite magnet is far stronger, so it is recommended in cases where space is limited. The neodymium magnet shows an adhesion up to ten times stronger than the ferrite magnet. The latter, however, is cheaper, but also more stable in price, since elements of rare earths are not used in their processing as is the case with neodymium magnets, which are subject to significant fluctuations in prices. In addition, ferrite magnets can be used at temperatures of -40 degrees to 250 degrees Celsius, while neodymium magnets lose their magnetic force at temperatures greater than 80 degrees.
It is worth knowing, therefore, that ferrite magnets can be used under high temperatures of up to 250 degrees. This type of magnet is recommended for outdoor uses, but to a lessor extent for indoor areas, where aesthetics may be more important than magnetic force. The advantage of neodymium magnets is their strong magnetic adhesion capacity. Therefore, they are ideal when no large areas are available, you need to save space and the magnet must adhere with force. These magnets usually have a coating that makes them easy to customize and adapt to the decoration of the room.
Another interesting difference is that ferrite is resistant to corrosion by chemicals and suitable for outdoor use, but neodymium is not. Neodymium breaks easily, while ferrite is much more resistant and resists breakage. Both magnets retain their magnetic force over time, and there is no reason to fear losing the magnetism naturally. However, ferrite magnets can be demagnetized by the influence of stronger neodymium magnets. This process can also reverse the magnetic poles of the magnet.
As we have already indicated, ferrite magnets are not coated and have a dark gray color. Therefore, they are not so easy to use in decorative situations and to adapt to interior designs. The neodymium ones have a silver color due to their nickel and copper based coating and they combine perfectly with decorations. Magnets near devices such as pacemakers or hearing aids can affect their function. If there is a risk that the magnets will approach such devices, we recommend using ferrite magnets, since they are less strong than neodymium magnets.