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High Corrosion Resistance Magnets
(168 Products)High corrosion magnets are designed to operate in the harshest of environments where magnets are most vulnerable to rusting. Our range of corrosion resistant magnets are designed to maintain a superior performance outdoors where other magnets are likely to fail.
![Samarium Cobalt Disc Magnet - 19/32 in. dia x 1/16 in. thick - 3.08lbs Pull](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/pj7nGQnF5JA4DzRW33gpMjHc8f3hLl3H4yLNNagC.jpg)
![MagFlex® Lite Flexible Black Magnetic Sheet - 24-3/8 in. Wide](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/Y6JbCbsZ3bHjo4zcaORRaLOi5gIxONkTgSzskZbs.jpg)
![MagFlex® Flexible Magnetic Tape - Premium Self-Adhesive - 1 in. Wide](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/emM4m7tHeNeoQzHzYdwDoRgWDwBpe3s1t3oFikgp.jpg)
![MagFlex® Lite Flexible Magnetic Gridding Tape - 1/2 in. Wide - Black](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/VG5OhPW41pqJ5XmUVAnOy7qaKJyH9UHyrq0JpwtZ.jpg)
![Traditional Alnico Horseshoe Magnet & Iron Powder Set - Science & Education](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/oO1NA0h5HtvnlOHsyWQeFfLNCgJ5aZLdF6jax7dj.jpg)
![Alnico Round Rod Magnets - 5/16 in. dia x 1 in. long - 1.08lbs Pull (Pair)](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/NI0ZnJK5GKD2ZX7jVeVXXDpzMmXcBFRR4fNq5NEi.jpg)
![Stitch In PVC coated 'Quick Change' Textile Magnets - Magic & Illusions (Pair)](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/9iMu6Ct3hKDcxsk8OCHbZxA70xiW0rHbQAGS9yxx.jpg)
![N42 Neodymium Rubber Coated Disc Magnet - 27/32 in. dia x 1/4 in. - 13.67lbs Pull](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/Z7omEIPK7IEscpPbqlQR6dXGubBlEp9uITJZ7a8Y.jpg)
![Y30BH Ceramic Rectangular Magnet - 1-7/8 in. x 1 in. x 3/8 in. thick - 7.94lbs Pull](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/iQQxE9Emfnu9ESFsKTXqRvyy05lars4mkOWmBJ5I.jpg)
![Magnetic Cable Tie Mount (Stainless Steel) - 1 in. x 1 in. x 1/4 in. thick - 13.45lbs Pull](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/TkgivJOvvzlKlEHSeXCGFTOLBH7svSXoLNXmXyqc.gif)
![2x Educational Alnico Bar Magnets (North) & South Identified - 3/8 in. x 1/4 in. x 3 in.](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/bLHQrcsOa9dvgk0MCC0LTygydHgIAtSKmjSNJyP1.jpg)
![N42 Neodymium Stainless Steel & Rubber Coated Pot Magnet - 1-1/4 in. dia - 76.51lbs Pull](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/8EKnbYXuNEiMJ2egdYBPtHTiTg8l0fvK63IwGKdN.jpg)
![MagFlex® Flexible Black Magnetic Sheet - 24-3/8 in. Wide](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/KzvA8u7GnbUy1CLbaX7QyRYxjEVBMRVPTNHBvLI8.jpg)
![MagFlex® Xtra-Lite A3 Flexible Magnetic Sheet - Inkjet Printable](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/rWLQFclMI1OlAFPclvDgvHixZ3mwvI15IEQJ4hON.jpg)
![Y30BH Ceramic Rectangular Magnet - 9/32 in. x 9/32 in. x 1 in. thick - 0.51lbs Pull](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/dZC99XkmSSv6nhCwvjUwJCKL7hcF2O6zPA8QUOMI.jpg)
![MagFlex® A2 Flexible Gloss White Magnetic Sheet (Per Sheet)](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/N0S4eXRsNFcf7NdrHqAK0kDepjY3HuJ8bCyaHXOR.jpg)
![MagFlex® Lite A4 Flexible Magnetic Sheet - Gloss White / Dry Erase](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/BiNZyaMwZC7RRO7VuENYkUToYmxVwfJz4Hq5YJt8.jpg)
![MagFlex® A3 Flexible Magnetic Sheet - Gloss White](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/jP1zvUcCQcE3s4BjbMjFeDOby4lgXvGvtyG5f9to.jpg)
![MagFlex® Ultra A4 Flexible 3M Self-Adhesive Magnetic Sheet](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/wKWStwe1XOv820eQwE26iR8BXvCoZuVMg1uLQ2Bf.jpg)
![MagFlex® Double-Sided Flexible Magnetic Sheet - 24-3/8 in. Wide - Gloss White](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/2M8oTbIeuo71Bkeia9yEILr3Uy4UMxNBWyJhyxtk.jpg)
![Diametrically Magnetised Samarium Cobalt Disc Magnet - 1/4 in. dia x 5/32 in. thick - 0.66lbs Pull](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/7YgEPku5zPZjaNnolwoEbniTpUvAG8bcUgLMhrNW.jpg)
![Samarium Cobalt Ring Magnet - 1-9/16 in. O.D x 1 in. I.D x 3/16 in. thick - 25.13lbs Pull](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/qNFcOPyYt301K0sOUq19f3YNiZe1EzAvBHnM1eAX.jpg)
![Samarium Cobalt Disc Magnet - 3/16 in. dia x 1/16 in. thick - 0.73lbs Pull](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/W1ptUv6GGVqWtzdTsXjNLq4XI1QYry4m1Fpc6IEJ.jpg)
![MagFlex® Lite Flexible 3M Self-Adhesive Magnetic Sheet - 24-3/8 in. Wide](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/biKQo3KEdMDzLshsQRCvwlSUJcfQfI0XfCAx4PJ5.jpg)
High Corrosion Resistance Magnets
Corrosion is the most common cause for a magnet failing. If you are using magnets outdoors, or in an environment in which they are likely to come into regular contact with moisture then you need a material that won’t rust. Here, you will find a range of ceramic magnets, samarium cobalt magnets, alnico magnets and flexible magnets that all have excellent resistance to corrosion without any further coating or protection. Magnets that are susceptible to corrosion are often plated to give some protection, however this is often not enough to withstand continued use in moist environments, the magnets may look fine on the outside but could be rusting from the inside out.
Samarium cobalt magnets are made of an alloy with very little iron content, which gives them their superior resistance, while ceramic magnets are made from iron-oxide which is commonly known as rust and therefore won’t corrode further once manufactured.