Rubber-coated magnets, also known as rubberized magnets, are versatile tools widely used for both temporary and permanent mounting, fastening, or holding various items such as work lights, beacons, ladders, instruments, and other devices. These magnets often come with different types of clamps and hooks, and can serve as magnetic cable holders for wire mounting. The rubber coating plays a crucial role in the performance of the magnet, providing a protective layer for the entire structure.
Weizhong Magnetics manufactures a comprehensive range of rubber-coated magnets. Initially, these magnets were coated with materials like NBR or EPDM, which are commonly used for such applications. However, after extensive experimentation and testing, Santoprene TPV rubber was found to outperform the others. Its excellent performance and stable properties have made it a favorite among our customers.
What is Santoprene TPV?
TPV, or thermoplastic vulcanizate, is a type of thermoplastic elastomer (TPE) that closely resembles the properties of EPDM rubber. It combines the qualities of vulcanized rubber with the processing ease of thermoplastics. TPV is a dynamically vulcanized alloy primarily made up of fully cured EPDM rubber particles encapsulated in a polypropylene (PP) matrix. Santoprene is a trademark name for this type of TPV.
Why We Chose Rubber Coating and Its Advantages
When exposed to harsh environments—such as water, oil, corrosion, extreme heat, or bitter cold—magnets with typical coatings like nickel, zinc, or chrome can quickly rust and peel. This is where rubber-coated magnets come in, providing an ideal solution to these issues. The rubber coating shields the internal magnet and steel parts from these severe conditions, ensuring durability and performance.
Compared to EPDM and NBR, Santoprene TPV excels in combining the benefits of vulcanized rubber with thermoplastic processing characteristics. It stands out for its resistance to strong pulling forces, high durability, corrosion resistance, temperature resilience, waterproofing, and its ability to prevent magnets from chipping easily. These qualities make Santoprene TPV the best option for rubber-coated magnets.
