Plastic Coated (Waterproof) Magnets

Neodymium rare earth magnets sealed in plastic are the strongest plastic coated magnets. Because the nickel plating of the magnets is completely covered with plastic, these strong  plastic coated neodymium magnets are safe to use in harsh environments such as salt water and acid rain, with no risk of corrosion. Powerful plastic coated neodymium magnets are the best ideal for outdoor use. They are easy to use and work well with magnetic whiteboards.

Neodymium magnets do not have strong corrosion resistance, and even nickel-plated neodymium magnets are not completely waterproof. A plastic layer protects the magnet from corrosion by separating liquids such as water from the magnet. Our plastic coated neodymium magnets are sold as strong waterproof magnets, rust and corrosion resistant magnets.

Common Applications of Plastic Coated (Waterproof) Magnets

Plastic coated magnets are widely used across industries due to their durability and resistance to harsh conditions:

Marine and Underwater Equipment – Ideal for underwater sensors, fishing tools, or marine instruments.

Outdoor Signage and Displays – Used for magnetic fastening of signs, banners, and temporary structures exposed to rain or sun.

Industrial Machinery – Applied in assembly lines or jigs where lubricants or coolants may contact magnets.

Medical and Laboratory Devices – Suitable for sterile and moisture-controlled environments.

Consumer Electronics – Waterproof magnetic connectors or holders in gadgets and devices.

DIY Projects & Education – Used in creative projects requiring safe, durable magnets for outdoor use.

How to Choose the Right Waterproof Magnet

When selecting a plastic coated magnet, consider:

Environmental Conditions – Will it be used underwater, outdoors, or in a chemical-rich setting?

Pulling Force Requirements – The thicker the coating, the slightly weaker the surface magnetic strength, so adjust accordingly.

Shape and Size Compatibility – Select from round, square, or custom forms.

Safety Requirements – Plastic coatings are non-toxic and safe for direct human contact, making them suitable for healthcare or food-related industries.

Sustainable and Safe Magnetic Solution

Plastic coated magnets not only enhance durability but also support sustainable usage by extending product lifespan and reducing waste from frequent replacements. The plastic encapsulation can be produced from recyclable materials, aligning with modern environmental protection standards.

Conclusion

Plastic Coated (Waterproof) Magnets are an excellent choice for anyone needing a corrosion-resistant, impact-proof, and long-lasting magnetic solution. Whether in marine environments, outdoor advertising, or industrial assembly, these magnets ensure reliability and performance even under extreme conditions.

If you are looking for custom waterproof magnets, neodymium plastic coated magnets, or durable industrial magnetic components, consider partnering with a professional magnet manufacturer that offers OEM customization and technical support to meet your specific application requirements.