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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.
![Ceramic Limpet Pot Magnet Countersunk with M6 threaded hole - 1-9/16 in. dia x 3/8 in. thick - 13.23lbs Pull](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/hiy7cfuK9dS8fP26juGrUysvXqjoUEfcAP8nfn4p.jpg)
![Ceramic Limpet Pot Magnet Countersunk with M6 threaded hole - 2-3/16 in. dia x 3/8 in. thick - 35.28lbs Pull](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/SUGt9O4d9K3bKQayxMIbPPRXgotNz5UJTmNvq0FJ.jpg)
![Ceramic Limpet Pot Magnet Countersunk with M6 threaded hole - 2-9/16 in. dia x 3/8 in. thick - 55.13lbs Pull](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/P0fdnJr4BijFiypGnsyiM0RxD0kFYiRuPiRwP8Vf.jpg)
![Ceramic Limpet Pot Magnet Countersunk with M6 threaded hole - 3 in. dia x 1/2 in. thick - 72.77lbs Pull](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/vI4IFj5YpUQ66QLGzfAyNGGQE5Nj5lEGy5laeAcd.jpg)
![Ceramic Channel Magnet - 3 in. x 1-9/16 in. x 3/8 in. thick w/ 1/4 in. x 3/16 in. holes - 55.13lbs Pull](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/y1eu3b0cuksQhMio3BbKCx0aPShJJ1xG66lTAhkD.jpg)
![Samarium Cobalt High Tempreature Rectangular Magnet - 1 in. x 3/8 in. x 1/8 in. thick - 7.27lbs Pull](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/T2kfaFfuOlXBO2dmcOXd9DpSsiho5zqaKSqF9nOw.jpg)
![Y30BH Ceramic Ring Magnet - 2-13/16 in. O.D. x 1-3/16 in. I.D. x 15/32 in. thick - 14.11lbs Pull](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/9ZpAtwYJlKdJRij14gHD4dlsUUEHMPRuzh1DSjEa.jpg)
![Y30BH Ceramic Ring Magnet - 2-27/32 in. O.D. x 1-17/32 in. I.D. x 3/8 in. thick - 12.13lbs Pull](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/Ss5th59Oo4T2yoGN70QxvLonVrcSUMJTeV10kP3i.jpg)
![Ceramic Channel Magnet - 2-9/16 in. x 1-1/16 in. x 3/8 in. thick x 3/16 in. hole - 22.05lbs Pull](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/cB2oJPl8N8PcoQ21BVQM8AyBJe84N3sxVGjCVVNT.jpg)
![Y30BH Ceramic Rectangular Magnet - 2-9/16 in. x 13/16 in. x 19/32 in. thick - 9.26lbs Pull](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/E7PRJB4hk1yVZevIEA8rMNnvGy4exvhVe8hddc9D.jpg)
![Y10 Ceramic Ring Magnet - 29/32 in. O.D. x 11/16 in. I.D. x 7/16 in. thick - 0.55lbs Pull](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/8AZYU4TeZLezuRFJ5nYm9TrOTuQroaIpecXwdYhi.jpg)
![Y30BH Ceramic Ring Magnet - 1-7/8 in. O.D x 1 in. I.D x 3/8 in. thick - 11.03lbs Pull](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/AddRFu6WnXG1XZnr9wZkue2UE70HMUUCQGuXXEPW.jpg)
![Ceramic Channel Magnet - 3 in. x 15/16 in. x 1/4 in. thick x 5/32 in. hole - 22.05lbs Pull](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/ue6yhuhkCUpAJgb94JBHPeLByj0DBNuirS32RQRm.jpg)
![Samarium Cobalt Disc Magnet - 1/16 in. dia x 1/16 in. thick - 0.24lbs Pull](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/75jXzS84zUYusaeiIn7U9BbndgYI2xFz8GjnMDT5.jpg)
![Traditional Alnico Horseshoe Magnet - 3 in. x 1-9/16 in. x 5/16 in. - 2.21lbs Pull](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/Vv8oSXd87DU7dulKD4EiBVFkpzXYT5azrARf0jBN.jpg)
![Y30BH Ceramic Ring Magnet - 3-15/16 in. O.D. x 2 in. I.D. x 15/32 in. thick - 19.85lbs Pull](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/ihszY6OET1HhfzDuoBXcr4HF9thQjwAvNcy5p4hn.jpg)
![Y30BH Ceramic Ring Magnet - 4-1/32 in. O.D. x 2-1/32 in. I.D. x 19/32 in. thick - 19.85lbs Pull](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/2e7sUDVf32TaQhEychNN0wdiBNq89JwqZf4WKByT.jpg)
![Educational Alnico Bar Magnets & Iron Filings Set - Science & Education](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/kdanJdsj5Xt1NPNGSItDRyZMLHdtcKtvV6KNcKbj.jpg)
![N42 Neodymium Zinc Plated Countersunk Disc Magnet - 13/16 in. dia x 3/16 in. thick x 3/16 in. hole - 18.3lbs Pull](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/wkhI1lclA6l1m00wjHyCaywuwaW5muUqovLtmX0z.jpg)
![N42 Neodymium PTFE Coated Countersunk Disc Magnet - 1-1/16 in. dia x 1/4 in. thick x 1/4 in. Hole - 13.23lbs Pull](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/yf3hzXHVckYLzKK2DAu7HZWr9USzHi8r6xmhQBsh.jpg)
![Samarium Cobalt Countersunk Disc Magnet - 13/16 in. dia x 3/8 in. thick x 3/16 in. hole - 15.65lbs Pull](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/SAlsuPep3EcNShd5swd2SxQ2vPS4YXiZPnpF2sYv.jpg)
![MagFlex® Flexible Black Chalkboard Magnetic Sheet - 23-9/16 in. Wide](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/klzZ9jT3fVHzANF9zwX82Qt8UvVb4S4FuzZiU3ja.jpg)
![MagFlex® Lite A4 Flexible Magnetic Sheet - Chalkboard](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/gmTiU1qr6DguWFgDoAS8ZQldfyftAnnEBBoUFopF.jpg)
![MagFlex® Flexible Self-Adhesive Magnetic Strip Dispenser - 3/4 in. Wide](https://www.first4magnets.com/us/image-factory/7d7c302e6b38a10df6cc5b6485fd1cef26b4b855~436x436/images/products/WM4LXrRzNCAgNSeoT5N9yZJNUOLqWyL2uivC4xoH.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.