Magnet Coatings for Corrosion Protection

34 products

Showing 25 - 34 of 34 products

Shop magnets with specialty coatings designed for corrosion resistance, durability, and biocompatibility. Our collection includes Gold, Parylene, PTFE, Epoxy, TiN, Rubber, Chrome, and Silver plating—ideal for medical devices, laboratory use, outdoor assemblies, and other demanding applications.

Use the filters on the left to narrow your results by coating type, strength, or size to find the right solution for your project.

Showing 25 - 34 of 34 products

Sphere Magnets Ball Magnets Magnetic Balls

SP0629

$1.15

In stock, 298 units

0.250" (6.35mm) diameter Sphere
N52 Ball Magnets - Chrome Plated
Minimum Order Quantity (MOQ) = 15 pcs

This Product Not Eligible for Shipment to Canada, per Section 7 of the CCPSA

SP1062

$4.15

In stock, 594 units

0.625" (15.88mm) diameter Sphere
N40 Ball Magnets - Chrome Plated
Minimum Order Quantity (MOQ) = 3 pcs

SP1075

$6.50

In stock, 266 units

0.750" (19.05mm) diameter Sphere
N45 Ball Magnets - Chrome Plated
Minimum Order Quantity (MOQ) = 1 pc

Rectangle Magnets Neodymium Magnets Bar Magnets

Rect1020

$1.52

In stock, 868 units

1" (25.40mm) long x 0.125" (3.17mm) Wide
0.094" (2.38mm) thick
N40 Rectangle Magnets - Silver Plated
Minimum Order Quantity (MOQ) = 4 pcs

SP0628

$1.15

In stock, 395 units

0.250" (6.35mm) diameter Sphere
N52 Ball Magnets- Silver Plated
Minimum Order Quantity (MOQ) = 15 pcs

This Product Not Eligible for Shipment to Canada, per Section 7 of the CCPSA

SP0700

$1.25

In stock, 5458 units

0.276" (7mm) diameter Sphere
N40 Ball Magnets - Silver Plated
Minimum Order Quantity (MOQ) = 15 pcs

This Product Not Eligible for Shipment to Canada, per Section 7 of the CCPSA

SuperMagnetMan Neodymium Ring Magnet. Used as medical magnets, motor magnets, sensor magnets, consumer electronics magnets. These ring magnets are strong rare earth neodymium magnets also used as automotive magnets. www.supermagnetman.com

R110345H

$5.75

In stock, 8 units

1" (25.40mm) OD x 0.500" (12.70mm) ID
0.250" (6.35mm) thick
N45H - Ring Magnets - Black Epoxy Coated
Minimum Order Quantity (MOQ) = 1 pc

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Frequently Asked Questions

Why do neodymium magnets require coatings?

Neodymium magnets are prone to corrosion and surface damage if left uncoated. Coatings protect the magnet material from oxidation, chemicals, and wear—ensuring long-term performance and dimensional stability.

How do I choose the right coating?

Consider your environment (dry, humid, chemical exposure), mechanical stresses (abrasion, impact), electrical needs (conductive or insulated), and any biocompatibility requirements. Our Magnet Coating Specifications chart can help guide your selection.

Can coated magnets be sterilized or cleaned?

Many coatings, including Parylene and Gold, are compatible with cleaning and sterilization processes. For critical medical or food-grade applications, confirm compatibility with your process before production.

Can you produce custom sizes, magnetization direction or coatings?

Yes. Through our engineering division, SM Magnetics, we can design and manufacture custom sizes, magnetization directions, and specialized coatings. You can either submit a custom request form or contact us directly to speak with our experts.