China Neodymium And Ferrite Magnets Manufacturer & Supplier 
In many projects and applications, neodymium magnets need to be adhered to plastics for a stable magnetic connection, how should they be glued? What types of glues are better to use? The following tips are for you.
1、Use epoxy resin glue
Epoxy resin glue is a two-component glue that usually consists of a resin and a hardener. It can bond metals and plastics very well and has excellent chemical resistance and heat resistance.
2、Use of cyanoacrylate glue (fast-drying glue)
Cyanoacrylate glue is a fast-drying adhesive with strong instantaneous adhesive strength for small area bonding. It is particularly suitable for bonding small neodymium magnets to plastic, but may require additional fixing for larger area applications.
Black epoxy coated neodymium cylindrical magnets are shown.
3、Use of polyurethane adhesive
Polyurethane adhesive has good elasticity and durability and is suitable for bonding applications that require a certain degree of flexibility. It absorbs vibration and prevents cracking of the bond due to impact.
4、Double-sided adhesive
Special strong double-sided adhesive can be used to temporarily or permanently adhere neodymium magnets to plastics, although this method is easier, the adhesive strength is usually not as strong as the above adhesives.
Related Product Cases; Self Adhesive Neodymium Magnets
5、Process the magnet with screw holes
Neodymium magnets can be processed into sunken holes, the number of holes can be 1, 2 or more, the neodymium magnets with screw holes will be screwed into the screws for fixing on the plastic parts.
View sunken hole magnets type: Rare earth neodymium sunken hole magnets
Generic steps for using adhesive bonding;
1. Apply an appropriate amount of adhesive evenly to the surface of the neodymium magnet and plastic. Make sure the adhesive covers enough area to obtain stable bonding effect.
2. Press the neodymium magnet firmly against the plastic and maintain some pressure for several minutes to ensure that the adhesive makes full contact and cures. For epoxy adhesives, it is recommended to apply pressure and hold for at least 15 minutes.
3. Wait for sufficient curing time according to the instructions for the adhesive used. Epoxy adhesives usually require 24 hours to fully cure, while cyanoacrylate adhesives require only a few minutes to a few hours. Avoid moving the magnet during the curing process.
In conclusion, when glue neodymium magnets to plastic, the key is to choose the right glue for the type of plastic and make sure the surface is clean for the best bonding results.
Worth your understanding;