Magnet Coating Specifications

Magnet Coating Specifications

Choosing the right magnet coating is critical to ensure performance, longevity, and safety in demanding applications. At SuperMagnetMan, we offer a wide range of coatings designed to improve corrosion resistance, provide biocompatibility for medical testing, and deliver durability in harsh environments.

Whether you’re prototyping for medical devices, motors, or sensors, our coating options help protect your magnets against wear, chemicals, moisture, and extreme temperatures. In partnership with our engineering division, SM Magnetics, we provide both off-the-shelf coated magnets and custom coating solutions tailored to your exact requirements.

Corrosion-Resistant Magnet Coatings

Coating Typical Thickness Max Temp (Β°C) Key Benefits Common Prototyping Uses
Nickel (NiCuNi) 15–25 ΞΌm 200 Most common used coating, price beneficial, excellent against humidity Consumer goods, industrial magnets, motors
Gold (Au) 0.1–1 ΞΌm 200 Corrosion resistance, high conductivity, thin & hard Medical tools, implant testing
Epoxy 15–30 ΞΌm 200 High chemical & corrosion resistance Motors, sensors, lab testing
Gold (Au) 0.1–1 ΞΌm 200 Corrosion resistance, high conductivity, thin & hard Medical tools, implant testing
Epoxy 15–30 ΞΌm 200 High chemical & corrosion resistance Motors, sensors, lab testing
Parylene 10–30 ΞΌm 120–350 Biocompatible, lightweight, low friction Surgical implants, aerospace prototypes
PTFE 20–25 ΞΌm (spray) /
1.5–3 mm (molded)		 250 Waterproof, non-stick, chemical resistance Food & medical testing
Rubber ~0.5 mm 135 Adhesion, abrasion & impact resistance Holding applications
Titanium Nitride (TiN) 3–6 ΞΌm 500 High hardness, wear resistance, reduces friction Miniaturized devices, medical prototypes
Coating

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Typical Thickness
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Max Temp (Β°C)
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Key Benefits
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Common Prototyping Uses
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Download Full Coating Specifications (PDF)

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Specifications provided by SM Magnetics, our engineering and custom solutions division.