plastic magnets

What is plastic coated magnets?

Plastic coated magnets refer to magnets that have been enveloped within a protective plastic casing. This encapsulation provides enhanced durability and protection, making them increasingly sought-after in various applications. Most of plastic magnets are wrapped with neodymium magnets.

Types of Plastic Coatings

Plastic-coated magnets are classified based on the extent of their plastic coverage:

Semi-Wrapped Magnets: 

Semi -wrapped means insert molding. These magnets have a partial plastic covering. While they offer some protection, they are primarily used for aesthetic purposes. The magnets housed within are typically of the ferrite magnets, like whiteboard magnets and push pin magnets.

Semi-Wrapped Magnets
Semi-Wrapped Ferrite Magnets

Fully-Wrapped Magnets: 

Fully-wrapped also name over molding. These magnets are entirely encased in plastic, ensuring optimal protection. Such magnets predominantly house neodymium iron boron due to their superior strength and vulnerability to external factors.

plastic coated neodymium magnet
Fully wrapped magnets

Materials Used for Coating

The plastic coatings can be crafted from a variety of materials, including but not limited to:
Acrylic Magnets
Acrylic Magnets
If these plastic materials don’t meet your requirements, you can also consider rubber coated magnets and silicone-coated magnets.
Rubber coated magnet
Rubber coated magnet

Key Features

Plastic coated magnet has some features that you should note:


The plastic coating ensures resistance to water ingress, making these magnets suitable for applications where exposure to moisture is anticipated. The typical waterproof magnet is a button magnet in clothing.


They offer protection against rust, scratches, and corrosion, particularly in challenging environments like seawater, acidic and alkaline chemicals.

acidic and alkaline chemicals

Stirring bar in the laboratory, where acidic and alkaline chemicals are everywhere. In this case, using the plastic material PTFE can protect the magnet very well.

  Plastic magnetPTFE neodymium magnet


Coral fragment rack. The fish tank used for cultivating corals is filled with high-salt water. Ordinary coated magnets cannot withstand it for a long time.Anti-corrosion Especially in seawater, plastic coating is a must.

Enhanced Strength

The plastic casing provides an added layer of structural support, minimizing the risk of breakage, especially in the case of neodymium magnets.

Surface Protection

Their soft plastic exterior prevents potential scratches on surfaces they adhere to, such as whiteboards.

Color Variations

Plastic-coated magnets are available in a spectrum of colors, facilitating organizational tasks and aesthetic preferences in various settings.

plastic magnet


These magnets find utility in diverse settings, including laboratories with corrosive substances, aquatic environments like coral cultivation tanks, and other scenarios demanding robust and resilient magnetic solutions.
For inquiries, customization, or further information regarding plastic-coated magnets, dont hestiate to contact us. 
Osenc has expertise across a wide range of processing technologies and works with best-in-class suppliers. We understand a variety of plastics magnet manufacturing processs, ensuring comprehensive solutions tailored to specific requirements and budgets.


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