Thin neodymium magnets covered with flat steel shells and sealed in transparent soft PVC are known as sewing(sew-in) magnets. The steel shells are plated with zinc or nickel, steel shell make the magnet mono-pole and stronger. The soft PVC make the magnets sew-able,they are sewn in textile and used invisible magnetic buttons. By using hidden PVC magnetic buttons(sewing magnets), the appearance of application products can not be affected.
Unlike standard bare magnets, these magnets are fully encapsulated or coated, preventing corrosion and allowing safe use in clothing, bags, medical garments, and outdoor products.
Waterproof sew-in magnets are specially designed neodymium magnets that can be securely sewn into fabric, garments, and textile products while maintaining stable magnetic performance in wet, humid, or washable environments.
Our waterproof sew-in magnets are produced with:
• Fully sealed plastic PVC, TPU, silicone, or epoxy coating
• No exposed metal edges
• Strong resistance to water, sweat, detergents, and humidity
This encapsulation ensures the magnet remains washable and corrosion-resistant, even after repeated laundering.
Inside the waterproof shell, we use high-quality neodymium (NdFeB) magnets, offering:
• Strong magnetic force in compact sizes
• Grades available from N35 to N52
• Stable performance for lightweight fabric closures
The Waterproof Sewing Magnets button usually used in pairs as clothes magnets, blanket magnet,bag magnet etc. So they are known as sewing magnets or sew in magnets. To make the magnetic button waterproof and sew-able, we make PVC coat on the magnetic button surface. That is the PVC magnetic button, this kind sew on magnetic buttons are different from normal button magnet, they are hidden in the products where it's used, and you can not see it outside, so it is hidden magnetic button or invisible magnetic button.
Our waterproof sew-in magnets are widely used in:
• Clothing & garments (jackets, uniforms, sportswear)
• Outdoor & functional apparel
• Bags, backpacks, and accessories
• Medical and rehabilitation garments
• Baby products requiring hidden magnetic closures
These magnets are ideal when traditional buttons or zippers are not suitable.
Meank magnetic are professional China PVC magnet manufacturers. We not only have wide size range of waterproof button magnets for sale, but also can make new size according to customers' needs. As a professional neodymium magnet manufacturer, we provide:
✔ Different waterproof coating materials
✔ Adjustable magnetic strength
✔ OEM & ODM services for bulk orders
✔ Stable quality for mass production
Our engineering team can recommend the optimal magnet grade and coating based on fabric thickness, washing conditions, and required holding force. If you are looking for a trusted supplier of waterproof sew-in neodymium magnets, our team is ready to support your project with customized magnetic solutions. Contact us to discuss your application, quantity, and technical requirements.
There are two advantages of our PVC magnetic button (PVC waterproof magnets, waterproof sewing magnets): one is the strongest magnetic force, because we use standard neodymium magnet material which assure the performance of the hidden sew in magnets. The other one is durable than other's, we only use the high quality PVC, so that our PVC magnetic button are sew-able and washable and the PVC coats can not broken easily.
▶ Reliable neodymium magnet manufacturing experience
▶ Consistent magnetic performance
▶ Strict quality control & material selection
▶ Support for international wholesale and brand customers
▶ Fast sampling and technical support
