Adhesive glue for magnets

 

There are a variety of adhesive types that bond magnets. The features and benefits of each type are listed below. Permanent magnets are made from hard ferromagnetic materials. Magnet types vary in strength, cost, temperature and corrosion resistance. Typical magnet types include neodymium, rare-earth, samarium cobalt, AINiCo, and ferrites. All of these magnet types can usually be bonded as received but for highest strength or if the surface is contaminated cleaning with isopropanol is recommended.

Epoxy adhesives – one and two component epoxy adhesives form strong resistant bonds to various types of magnets. Ask DeepMaterial about specialty high-temperature motor magnet bonding adhesives for Class H motors.

Structural acrylic adhesives – surface activated acrylic adhesives are often preferred for high-speed motor production due to the very fast set times. Alternatively, two component external mix systems are available for a one step process.

The adhesive is applied to one surface, and the initiator is brushed or sprayed onto the other surface. Upon assembly, strength development
occurs rapidly.

Cyanoacrylate adhesives offer high strength bonds which are formed very quickly. Should you require high impact strength or resistance to polar solvents, epoxy or structural acrylic adhesive would be preferred.