20Pack Magnets for Crafts with Adhesive Backing,Round Disc Magnets Strong Stick.
20Pack Round Disc Magnets for Crafts — Strong Ceramic Magnets with Adhesive Backing
Product overview
The 20Pack Round Disc Magnets are premium ceramic magnets designed for craft and household use. Each disc measures 18mm (0.71") in diameter and 3mm thick, and the set includes a matching supply of double-sided adhesive pads so you can attach them quickly to lightweight items.
Buy / Check PriceKey features & benefits
- Premium quality: Ceramic magnets with demagnetization resistance, corrosion resistance and oxidation resistance for longer-lasting performance.
- Safe design: Beveled edges reduce the chance of scratching delicate surfaces.
- Pole marking: Each magnet has dots to indicate the north pole, making orientation easy for projects and experiments.
- Double-sided adhesive: Each pack includes adhesive pads matched to the magnet count — wait a few hours after gluing to reach full adhesion.
- Versatile: Use them as fridge magnets, classroom magnets, office organizers, science project components, or DIY craft fasteners.
Specifications
| Attribute | Detail |
|---|---|
| Pack quantity | 20 magnets + matching double-sided adhesive |
| Shape | Round disc |
| Diameter | 18mm (0.71") |
| Thickness | 3mm |
| Material | Ceramic (ferrite) |
| Finish / Design | Beveled edge, pole-marking dots |
| Typical uses | Fridge magnets, crafts, classroom, office, small industrial fixtures |
Top use-cases & project ideas
- Refrigerator buttons: Create custom fridge art or hold family notes and grocery lists.
- DIY crafts: Attach magnets to paper, wood, or lightweight plastics for handmade gifts and decorations.
- Classroom experiments: Use the discs to demonstrate magnetic poles, fields, and basic physics demonstrations.
- Office organization: Keep small metal tools, clips, or labels on magnetic surfaces tidy and accessible.
- Science projects & prototypes: Rapidly mock up small fixtures or fasteners in prototypes and hobby builds.
How to use & best practices
- Clean the surface thoroughly where you will attach the magnet — remove dust, grease and moisture for best adhesion.
- Peel one side of the double-sided adhesive and press it firmly onto the flat face of the magnet.
- Peel the protective film from the other side of the adhesive and press the magnet onto your target surface. Hold firmly for 10–20 seconds.
- Allow the adhesive to cure for several hours (recommended: 4–24 hours) before applying sustained loads.
- Avoid exposing the adhesive to high heat or solvents which can weaken the bond.
Frequently asked questions
- Are these magnets strong enough to hold paper on a fridge?
- Yes — these 18mm ceramic discs are suitable for holding papers, photos and lightweight items on most refrigerator doors. Heavier items may require larger or neodymium magnets.
- Will the magnets scratch surfaces?
- The discs have beveled edges to reduce scratching. Still, test on a small area first and avoid sliding the magnet across delicate finishes.
- Is the adhesive included?
- Yes — the pack includes a matching number of double-sided adhesive pads. For maximum stickiness, allow a few hours of curing time after bonding.
- Can I use these outdoors?
- Ceramic magnets are corrosion-resistant to some degree, but prolonged outdoor exposure (rain, salt air) can reduce longevity. For outdoor/harsh environments consider sealed or stainless/epoxy-coated options.
Final thoughts
The 20Pack Round Disc Magnets with adhesive backing are an affordable, well-designed option for crafters, teachers, and home organizers. Their small size, clear pole marking, and included double-sided adhesive make them a ready-to-use solution for many everyday magnetic tasks.
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