Because of its poor corrosion resistance, NdFeB magnets usually require surface coating before they can be used. If you're using your magnet for activities that may expose it to moisture, it's a good idea to add a coating to your magnet, or it could be subject to corrosion. Corrosion will destroy the magnetic field of the magnet, so it is very necessary to coat the magnet.


There are different types of magnet coatings for NdFeB coated magnets, some mainstream coatings are nickel-copper-nickel, zinc, epoxy, gold, rubber, etc. Each type of coating has its unique characteristics. Today, the editor mainly introduces you to the introduction of rubber-coated magnets. I hope it will be helpful to you.


1. What is a rubber coated magnet?

Glue-coated magnets, also called glue-coated magnets. It is common to use black isoprene rubber as a coating to cover the magnet. They are one of the most widely used magnets in various industries. Rubber coated magnets are known to be extremely durable and provide excellent friction and protection.


2. Rubber coated magnet type

They are perfect for outdoor and indoor use. Due to their high slip resistance, this type of magnet is often used in fixing and mounting applications. Rubber coated magnets are available in different designs, divided into external thread, convex thread, flat thread, countersunk.


3. Advantages of rubber coated magnets

   Strong corrosion resistance

   The rubber material itself is corrosion resistant, and usually the rubber coating is much thicker than other types of neodymium magnets. This also makes the coating suitable for use in wet environments, thereby protecting the powerful magnets inside.


High skid resistance

Rubber has high friction. Ordinary coatings tend to slip sideways when they are adsorbed on a smooth surface, but rubber coatings do not.

Good temperature characteristics

Rubber-coated magnets can work normally at high temperatures of 80 degrees Celsius and low temperatures of minus 40 degrees Celsius.


Many colors

The common ones are mostly black, but they can also be adjusted to blue, yellow, green, and other colors according to needs.


 To sum up, rubber coating is suitable for use in harsh environments, but generally unconventional sizes may require mold opening. In this case, it is best to communicate with the magnet factory in advance.


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