first4magnets F290SA-10 N42 Neodymium Adhesive Magnets, 15mm, Pack of 10
Product description
The self-adhesive backing on these thin N42 neodymium magnets makes them easy to position on a suitable surface, without needing a separate adhesive for attachment. Each round magnet is 15mm in diameter and 0.5mm thick, and the pack contains 10.
They’re intended for projects such as craft making, packaging, retail displays and closures for books or folders. The adhesive also makes them a practical alternative to loose magnets when you want to fix a magnet to an item rather than have it move freely.
Tips for day-to-day use
Peel off the backing and press the adhesive face onto the surface you want to use. The adhesive is a 3M 468 acrylic type, its bond strengthens with natural ageing. The manufacturer recommends allowing 24 to 32 hours for it to cure fully before relying on it to withstand the magnet’s pull. That waiting time matters if the magnet will be used to hold something in place rather than simply stay attached itself.
Each magnet has its south pole on the non-adhesive face and its north pole on the adhesive face. If you plan to use two magnets to attract one another, their exposed faces need opposite poles. This is worth bearing in mind when planning a pair for a closure or display.
Why it makes sense
The main appeal is the combination of a slim profile and an adhesive backing: the magnets can be attached directly to a project, rather than housed in a thicker holder or used as loose pieces. Their round shape and 15mm diameter suit small-scale craft, packaging and display work where a low-profile fixing is useful. The nickel, copper and nickel coating is intended to reduce corrosion and gives the magnets a smooth finish.
How much holding force do you need from a magnet this small? Each is stated to support up to 0.28kg vertically when its magnetic face is in flush contact with a mild steel surface. That figure is specific to those conditions, so it should not be treated as a universal load rating for other surfaces or arrangements.
A solid pick if you want a small, adhesive-backed magnet for a defined craft or closure project. Not the best choice if the job calls for a stated holding force beyond 0.28kg, or relies on contact other than flush contact with mild steel, the supplied information does not establish performance for those situations.
Key features
- Type: Round, self-adhesive neodymium magnets
- Grade: N42 (NdFeB)
- Size: 15mm diameter x 0.5mm thick
- Pack: 10 magnets
- Pull force: Up to 0.28kg vertically against mild steel in flush contact
- Poles: South on the non-adhesive face, north on the adhesive face
- Adhesive: 3M 468 acrylic, with easy-peel backing
- Coating: Nickel, copper and nickel
When it makes sense
Choose this pack for small projects where you want to attach magnets directly to items, such as a handmade fridge magnet, a book or folder closure, or a retail display element. For this type of use, the thin format and peel-and-stick backing keep the fixing straightforward, while the pole orientation is useful to know before arranging magnets in pairs.
If the project depends on a particular load, surface or installation arrangement, match those requirements against the stated flush-contact condition and allow the adhesive its recommended curing time. For uses outside the listed examples, the supplied details do not give a broader performance guarantee.