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B&Q£16.99Visit shop - Adhesive N42 Neodymium Magnet For ArtsCraftsModel Making25mm X 10mm X 1.5mm Thick2.2Kg PullNorth
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This guide is for crafters, designers, and engineers looking for strong, convenient magnetic solutions. The B&Q Adhesive N42 Neodymium Magnet offers powerful magnetic force in a compact size with a strong adhesive backing for easy application. A key caveat is the required curing time for the adhesive to reach full bond strength, which can take 24-32 hours.
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Each magnet can support a steel weight of up to 2.2kg vertically when in flush contact with a mild steel surface.
The acrylic pressure-sensitive adhesive requires between 24 to 32 hours to fully cure and reach its maximum bond strength.
While the magnets themselves have a corrosion-resistant coating, the adhesive's performance underwater is not guaranteed. It is best suited for dry or moderately humid environments.
'N42' refers to the grade of the Neodymium magnet, indicating its magnetic strength. Higher numbers generally signify stronger magnets.
Neodymium magnets are very strong and should be kept away from sensitive electronic devices, magnetic storage media (like credit cards or hard drives), and medical devices like pacemakers.
If using two magnets to attract each other, ensure they have opposite poles facing each other (one North, one South) on the non-adhesive side. If the same poles face each other, they will repel.
Neodymium magnets are hard and brittle. Attempting to drill or machine them can cause them to shatter. It is not recommended to alter the magnets.
Ensure the surface is clean and smooth. Allow the adhesive to fully cure for 24-32 hours. Verify the item being held is ferromagnetic and not too heavy for the magnet's specified pull strength.
Re-clean the surface thoroughly. Ensure the surface is dry before application. For surfaces that may not adhere well, consider using a suitable adhesive enhancer or epoxy in conjunction with the magnet.
Neodymium magnets are highly resistant to demagnetization. Significant loss of strength typically only occurs with exposure to extreme heat (above 80°C or 176°F) or strong opposing magnetic fields. Physical damage can also affect performance.
Due to their strong pull, magnets can be hard to separate. Try sliding one magnet off the other rather than pulling directly. Using a non-magnetic tool or lever can help.
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