Strong Neodymium PVC/TPU Waterproof Sew-in Magnetic Buttons (N35-N54 Grades)
2026-01-06
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Imagine this: You’re out on a rainy hike, and your backpack’s zipper jams. Or you’re a construction worker, fumbling with frozen snaps on your work coat while wearing gloves. Or your boat’s sail cover’s Velcro wears out again after a month of saltwater exposure.
For outdoor gear, industrial workwear, or marine fabric — traditional closures (zippers, snaps, Velcro) are a weak link. They break, jam, or degrade in harsh environments. But waterproof sew-in neodymium magnetic buttons (N35-N54 grades)? They’re built to survive what other closures can’t.
The Problem With “Tough” Closures
Zippers jam in mud or freeze shut in cold weather. Snaps break off heavy canvas. Velcro collects dirt and loses grip after a few uses. And for marine gear? Saltwater corrodes metal snaps and rots Velcro in weeks.
These aren’t just minor annoyances — they’re costly: You replace zippers, re-sew snaps, or buy new gear far sooner than you should. For businesses (workwear suppliers, outdoor gear brands), it’s a hit to customer trust.
Waterproof Sew-in Magnetic Buttons: Built For The Harshest Environments
Our industrial-grade magnetic buttons solve this with three unbeatable features:
- N35-N54 Neodymium Strength: Up to 3kg of pull force per pair (N54 grade) — strong enough to hold tent flaps against wind, or work coat closures while you lift heavy tools.
- PVC/TPU Waterproof Coating: Sealed against rain, snow, and saltwater (IP65-rated). Machine-washable (even industrial laundry cycles) — no rust, no magnetic loss.
- Single-Sided Iron Shell: Protects the magnet from abrasion (perfect for rough canvas or workwear) and focuses magnetic strength for a tighter seal.
What You Can Do (That Zippers/Snaps Can’t)
- Outdoor Gear: Seal tent flaps, backpacks, or hiking coat closures — they won’t jam in mud, freeze shut, or collect dirt.
- Industrial Workwear: Add closures to work coats or coveralls that you can open with gloves on (no fumbling with snaps).
- Marine Fabric: Fasten sail covers, boat cushions, or fishing gear bags — they resist saltwater corrosion (last 5x longer than metal snaps).
- Heavy Canvas Bags: Secure tool backpacks or equipment cases — the magnetic seal stays tight, even when the bag is stuffed full.
Real-World Proof: These Magnets Outperform The Rest
A construction company switched to N50-grade magnetic buttons for their workers’ winter coats. The result? 0 complaints about frozen snaps — and workers could open their coats 2x faster while wearing gloves.
A sailboat owner replaced his sail cover’s Velcro with N54-grade magnets: After 6 months of saltwater exposure, the magnets still sealed tight (the old Velcro lasted 1 month).
A outdoor gear brand added these magnets to their backpacks: Customer reviews noted “no more jammed zippers” — and return rates for closure issues dropped by 80%.
Why These Magnets Are Worth The Upgrade
| Closure Type | Durability (Harsh Environments) | Ease of Use (With Gloves) | Waterproof? | Longevity |
|---|---|---|---|---|
| Zippers | Low (jam/freeze) | Poor | No | 1-2 Years |
| Snaps | Medium (break off thick fabric) | Poor | No (rust) | 2-3 Years |
| Velcro | Low (collects dirt) | Good | No (rots) | 6-12 Months |
| These Magnets | High (abrasion/saltwater-resistant) | Excellent | Yes (IP65) | 5+ Years |
Stop Replacing Weak Closures
Zippers, snaps, and Velcro are designed for “normal” use — not the outdoors, industrial sites, or marine environments. These waterproof sew-in magnetic buttons are built for the tough stuff: They don’t jam, break, or degrade.
Whether you’re a weekend hiker, a construction worker, a boat owner, or a gear brand — these magnets are the closure upgrade you’ve been waiting for.
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HuanTongcx is a custom magnet supplier which providing neodymium magnet, ferrite magnet, samarium cobalt magnet for various industries.
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