Will magnets work underwater?
Yes, magnets attract to one another underwater. The biggest concern with using Flexible magnets underwater is corrosion. In the presence of moisture, Flexible magnets is anti rust and water proof.
Plastic Coated Magnets have a layer of injection molded plastic that surrounds them, providing a waterproof seal. Most of these magnets use a 1/32” thick layer of polypropylene plastic.
Do not use our Rubber Coated Magnets underwater. The natural rubber can have tiny pinholes, and may deteriorate over time.