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About Neodymium Magnets

Are your countersunk and self-adhesive magnets paired equally north/south?

Most of our countersunk and self-adhesive magnets come in equally paired packs, enabling you to use them as attachments to other magnets if desired. The product detail page will specify whether the magnets come paired or not. For pairing with steel discs or other plates, the north/south orientation of the countersunk hole or adhesive tape is not an issue as both the north and south pole will be equally attracted to steel surfaces.

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What is neodymium and how do you pronounce it?

According to Merriam Webster, neo·dym·i·um – pronounced nē-ō-ˈdi-mē-um – is a silver-white to yellow colored metallic element (symbol Nd) of the rare earth group that is used primarily in magnets and lasers.

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What does "magnetized thru thickness" mean?

We use the description "magnetized thru thickness" to identify the locations of the poles on our block magnets. It means the magnets stick or repel in the middle, on the large flat surfaces, rather than at the end of the block.

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Why are most neodymium magnets plated or coated?

Neodymium magnets are composed mainly of neodymium, iron, and boron. If they are not plated, the iron in the material will oxidize, particularly if exposed to moisture. Even normal humidity will rust any iron over time. In order to preserve and protect the lasting performance of each magnet’s magnetic field, most neodymium magnets are plated or coated.Nickel is the most common choice, as it is durable and cost-effective. Our magnets are coated with a triple plating of nickel-copper-nickel. This creates a shiny silver finish and provides dependable resistance to corrosion in most applications.

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How do neodymium magnets work?

All magnets work because of their unique atomic structure. Unlike all other objects, the atoms within magnets are all spinning in the same direction. This atomic flow inside of each magnet creates an invisible magnetic force or field around the magnet that can attract or repel other magnets – and attract other metal objects. In addition, all magnets have a north and south pole on opposite sides of the magnet. The north pole of a magnet points roughly toward Earth's north pole and vice-versa. In terms of functionality, the common saying is: like poles repel, unlike poles attract.

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