What type of glue can be used on permanent magnets?

Permanent magnets are widely used in various fields such as electronics, electrical, machinery, transportation, medical and daily necessities.

Permanent Magnet

Such as permanent magnets in speakers and telephone receivers; magnetic systems in magnetoelectric meters; magnetic poles in generators and permanent magnet motors; permanent magnetic devices used in the machinery manufacturing industry (such as permanent magnetic chucks for surface grinders, etc.) and magnetic suspension systems, magnetic bearings; magnetic separation systems, magnetic ore separation, magnetic water purification systems, magnetrons, proton accelerators, etc.

However, what type of glue can be used on permanent magnets? Below is the glue can be used on permanent magnets.

Factors to Consider When Choosing Adhesives for Permanent Magnets

When bonding permanent magnets to other materials like metal, plastic, or ceramics, several factors must be taken into account. These include:

Operating Temperature: Many applications involve high temperatures, such as in motors or magnetic lifting devices, where the adhesive must withstand long-term exposure to heat without degrading.

Thermal Expansion: Different materials expand and contract at varying rates with temperature changes. The adhesive must accommodate these differences to prevent stresses that could lead to bond failure.

Mechanical Stress: Vibration, shock, and mechanical loads are common in many magnet applications. For example, drive motors in vehicles or rotating machinery often experience significant stresses that must be absorbed by the adhesive.

Environmental Conditions: Magnets used in outdoor environments or harsh industrial settings may be exposed to moisture, chemicals, or salt spray, especially in marine applications like offshore wind turbines.

Given these challenges, selecting the right adhesive is crucial. Let's delve deeper into the adhesive options outlined previously.

High temperature epoxy adhesive:

• SL3029: Suitable for high temperature insulation packaging of electronic and electrical products, with a long-term temperature resistance of -40~+200℃ and a short-term temperature resistance of 240℃. It is particularly suitable for potting of electric permanent magnet lifters (such as lifting electric permanent magnets), permanent magnet lifters, rechargeable electric permanent magnet lifters, electric permanent magnet chucks, electric permanent magnet fixtures, etc.

• SL3352: The working temperature ranges from -60℃~200℃, and can reach 250℃ for parts with small vibration or load. It is suitable for high temperature bonding and sleeve bonding of metals, glass, ceramics, grinding wheels, etc.

Methacrylate adhesive:

• 1665nb: It has the characteristics of high bonding force, high strength, high temperature resistance, gap filling, shock resistance and rapid positioning, and is widely used in electronic consumer products. It is suitable for bonding magnets to metals, with high bonding strength and high temperature resistance of -40 to 80 degrees.

Rubber metal adhesive:

• JMC-700K: has excellent heat resistance, oil resistance, thermal shock resistance and insulation, and is particularly suitable for new energy vehicle drive motors that have more stringent requirements for high temperature and oil resistance.

• JMC-400G and JMC-502K: have excellent salt spray resistance and pencil hardness, and are particularly suitable for wind power, especially offshore wind turbines, that have more stringent requirements for salt spray resistance.

According to the specific use environment and requirements, you can choose the appropriate type of glue. It should be noted that different glues may have different operating processes and curing time requirements. Be sure to read the product instructions carefully before use.

About us

BMAG is a professional permanent magnet manufacturer, committed to providing high-performance, high-quality magnetic solutions to customers around the world. With many years of rich experience in the field of magnetic materials, BMAG focuses on the research and development, production and sales of various types of permanent magnets, including neodymium iron boron (NdFeB), samarium cobalt (SmCo), aluminum nickel cobalt (AlNiCo) and ferrite magnets.

BMAG

Our products are widely used in electronics, electrical, automotive, medical equipment, machinery manufacturing and other industries. BMAG always adheres to technological innovation and quality first, strictly controls every production process, and ensures to provide customers with stable and reliable magnetic products and customized solutions.