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Rubber Magnets for Education & Daily Life – Technical Support
1. What Are Rubber Magnets for Education & Daily Life?
Rubber magnets for education and daily life are safe, flexible, easy‑to‑handle magnetic materials mainly used in teaching demonstrations, classroom aids, and household organization, storage, and DIY projects. They are typically made of flexible ferrite rubber (ferrite powder + PVC/CPE), with moderate magnetic strength, rounded edges, and no sharp fragments – especially suitable for children.
Common product forms include:
Magnetic letters / numbers / shapes – for spelling, arithmetic, classroom interaction
Whiteboard magnetic strips – attach to the back of whiteboards to hold papers or cards
Cuttable magnetic rolls / sheets – DIY crafts, family memos, photo walls
Pre‑cut rubber magnets – already die‑cut into standard shapes (circles, squares, hearts, stars, etc.), ready to use out of the box – no cutting needed
Teaching demonstration magnets – life cycles of plants/animals, fraction circles, science experiments
⌈💡 Advantage of pre‑cut rubber magnets: Save cutting time, smooth and uniform edges, ideal for school bulk purchases, craft kits, and promotional giveaways. Common sizes include Ø20/30mm circles, 25×25mm squares, and various cartoon shapes.⌉
Core design concept:
Moderate magnetic force (easy for children to remove), smooth write‑on surface, toy‑safe certifications (EN71, RoHS), no sharp corners.
2. Key Features & Benefits
| Feature | Benefit for Education & Daily Life |
|---|---|
| Safe, no sharp edges | Flexible material, can be bent; pre‑cut products have rounded edges, no injury risk |
| Moderate magnetic force | Holds firmly on steel surfaces, yet children can easily remove them |
| Write‑on surface | Can be written on with dry‑erase markers and wiped clean – ideal for classroom interaction |
| Easy to cut | Rolls/sheets can be cut into any shape with scissors; pre‑cut products are ready to use |
| Non‑toxic & environmentally friendly | RoHS, EN71 certified – no lead, mercury, or other hazardous substances |
| Reusable | No adhesive residue, can be moved and reused many times |
| Durable & economical | Resists fading and aging, long service life |
3. Technical Specifications
| Parameter | Typical Range / Description |
|---|---|
| Material | Flexible ferrite rubber (Ferrite + PVC / CPE) |
| Magnetization type | Isotropic (300‑500 Gauss – safe and sufficient) |
| Total thickness | 0.4 mm – 1.0 mm (common: 0.5 mm, 0.7 mm) |
| Sheet sizes | A4 (210×297 mm), A3, 300×400 mm, or custom |
| Pre‑cut common shapes | Circles (Ø20/25/30/40 mm), squares (20×20, 25×25 mm), hearts, stars, animals, etc. |
| Strip widths | 5 mm, 10 mm, 12.7 mm (1/2 inch), 19 mm, etc. |
| Strip lengths | Continuous rolls (up to 30 m) or cut to length |
| Surface finish | Matte white (dry‑erase compatible) or coloured PVC lamination |
| Working temperature | -10°C to +50°C (indoor use) |
| Magnetic pull force | 10 – 40 g/cm² (ensures easy removal by children) |
| Safety certifications | RoHS, REACH, EN71 (Parts 1‑3), ISO 9001 |
4. Applications in Education & Daily Life
🍎 Teaching (Schools, Early Learning Centres)
For spelling, arithmetic. Letter height typically 2‑5 cm, bright colours.
Attach behind whiteboards or steel blackboards to hold papers, cards, displayed work.
Fraction circles, weather charts, days of the week, emotion faces – students move them.
Demonstrate magnetic field lines, build simple electromagnets, levitation experiments (with iron filings).
🏠 Daily Home Use
Cuttable magnetic sheets become message boards, shopping list holders, calendar magnets.
Magnetic knife strips, spice jar magnets, pot lid holders.
Ready‑to‑use heart, star, or circle magnets – directly on photo walls, children’s craft cards, fridge decorations.
Magnetic whiteboard pushpins, folder strips, photo wall magnets, DIY frames.
🧸 Children’s toys & creativity
Animals, vehicles, map outlines – reusable.
Use pre‑cut circles or squares as body parts to build movable characters.
Iron‑powder boards or magnetic doodle boards with magnetic pens.
Mixed shape kits (100/200 pieces) – perfect for kindergarten craft time or family activities.
5. Usage & Cutting Guide
About Pre‑cut Rubber Magnets
Ready to use – no cutting or trimming needed.
Shapes & sizes – We maintain standard tooling for circles, squares, hearts, stars, flowers, animal footprints, etc. Custom shapes available upon request.
Applications – Direct use as fridge magnets, reward stickers, craft kit components.
How to Cut Magnetic Sheets/Strips (for rolls or sheets)
Rubber magnet material is very easy to cut – no special tools required.
| Tool | Best for | Tips |
|---|---|---|
| Standard scissors | Any shape, small quantities | Straight cuts, smooth edges |
| Utility knife + straight edge | Straight lines, long strips | Score 2‑3 times on a cutting mat, then snap |
| Corner rounder | Children’s products | Turns right angles into safe rounded corners |
⚠️ Safety note: Although cut edges are not sharp, we recommend rounding corners for products intended for children. Pre‑cut products already have edge finishing.
Cleaning & Maintenance
How to Use on Non‑metallic Surfaces
To use on wooden doors, plastic boards, glass:
6. Troubleshooting Common Issues
| Problem | Possible cause | Solution |
|---|---|---|
| Magnetic force too weak | Thickness too thin (<0.4 mm) or isotropic type | Use 0.7 mm or thicker; educational use rarely needs anisotropic |
| Children struggle to remove magnet | Too strong (anisotropic or >1 mm thick) | For education, use isotropic, 0.5‑0.7 mm thick – easy for small hands |
| Writing won’t erase | Used permanent marker | Wipe immediately with alcohol; always use dry‑erase markers |
| Magnet curled | Stored vertically or exposed to heat | Flatten under a book; avoid sunlight or radiators |
| Lamination bubbled | Heat or humidity damage | Store in cool dry place; if bubbled, peel off lamination – magnet still works |
| White powder on edges | Ferrite powder release (normal) | Wipe with damp cloth – does not affect performance |
| Pre‑cut magnets stick together | Static or magnetic attraction | Use interleaving paper between layers, or gently separate by sliding |
👶 Child safety reminder:
7. Certifications & Quality Assurance
Our education & daily life magnets are manufactured according to international toy and consumer safety standards.
| Certification | Scope |
|---|---|
| ISO 9001:2015 | Quality management – consistent thickness and magnetic force |
| RoHS | No hazardous substances (lead, mercury, cadmium, hexavalent chromium, etc.) |
| REACH | Compliant with EU chemicals regulation |
| EN71‑1,2,3 | Mechanical/physical properties, flammability, heavy metal migration – full toy safety |
| ASTM F963 (available on request) | US toy safety standard |
Batch release tests:
8. Frequently Asked Questions (FAQ)
Q1: How are educational magnets different from ordinary magnets?
Educational magnets focus on safety and ease of use: rounded edges, moderate magnetic force (won’t pinch fingers), write‑on surface, and toy safety certifications. Ordinary industrial magnets may be brittle, too strong, or contain hazardous substances.
Q2: What standard shapes and sizes do you offer for pre‑cut rubber magnets?
We maintain tooling for: circles (Ø20/25/30/40 mm), squares (20×20, 25×25, 30×30 mm), hearts (25×25 mm), stars (30×30 mm). Custom shapes are welcome – MOQ 10,000+ pieces.
Q3: Can I print on magnetic sheets with a regular inkjet printer?
Yes, but only on inkjet‑coated magnetic sheets. We offer A4 printable sheets for home printers. After printing, you can cut them into letters or shapes. Pre‑cut magnets are not intended for end‑user printing, but we can screen‑print or UV‑print on them for you.
Q4: Can you custom make magnetic letter sets?
Yes. We have tooling for 26 uppercase letters, numbers 0‑9, and common punctuation. Choose colours (red, yellow, blue, green, etc.), letter height 2.5 cm or 4 cm. MOQ: 100 sets.
Q5: How do I use whiteboard magnetic strips?
Place the strip (non‑adhesive) behind a paper sheet, then both stick to a steel whiteboard. To convert a non‑metallic whiteboard into a magnetic board, use self‑adhesive strips on the back of the board.
Q6: What are your MOQs?
Q7: Can pre‑cut magnets be self‑adhesive on the back?
Yes. We offer pre‑cut magnets with permanent acrylic adhesive – peel and stick onto non‑metallic surfaces (plastic, wood, glass) to turn them into removable magnetic stickers.
Q8: How do I request a quote?
We will reply within 24 hours with detailed pricing and lead time.
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