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Despite the name, Mtsooning “welding rods” in this listing are replacement staples for a hot stapler (plastic repair welder), sold in 0.6 mm and 0.8 mm sizes. They are for pinning cracks in plastic such as bumpers, trim and housings, not for arc welding. If you already own a hot stapler and need refills, this pack is worth checking; if you do not own one, you need the tool first.
Mtsooning Hot Stapler Staples at a Glance
| Item | Per the listing | What to verify |
|---|---|---|
| Product type | Metal staples for a hot stapler plastic welder | Not arc-welding electrodes |
| Sizes | 0.6 mm and 0.8 mm | Which size your stapler accepts |
| Material | Described as tungsten steel with oxidation resistance | The listing’s wording; treat as general-purpose staple wire |
| Quantity | Bulk pack (the listing refers to 1000 pieces) | Counts per size |
| Uses | ABS, PVC, nylon and similar plastics | Plastic type stamped on the part |
Check the current price on Amazon →
What They Are and Who They Suit
A hot stapler heats a metal staple with an electric element and presses it into thermoplastic. The plastic softens around the staple, then cools and locks it in place. The result is a mechanical stitch across a crack, which is useful for bumper covers, kayak and tub cracks, ducts and appliance housings.
These staples suit hobbyists and body-shop or maintenance users who already own a hot stapler. The listing lists plastics such as ABS, PVC and nylon. Some product descriptions also mention aluminum and magnesium alloys, but a hot stapler cannot weld metal, so use proper welding gear for metal repairs.
How to Check the Staples Fit Your Stapler
- Thickness: check your stapler’s manual for the wire sizes it takes. Different machines are designed for particular staple sizes and shapes.
- Staple shape: hot staplers use flat, wave, inside-corner or outside-corner shapes. Make sure the listing shows the shape your stapler holds, and check the loading slot.
- Plastic type: identify the plastic from the recycling stamp inside the part (such as ABS, PP, PE or PVC). Thermoplastics are repairable this way; thermoset plastics and rubbers are not.
- Size choice: 0.6 mm staples suit thinner, lighter parts, while 0.8 mm staples add strength to thicker panels. For structural parts, consider welding rod with a proper plastic welder.
- Quantity: a large pack covers many repairs, but the mix of sizes in the listing matters, so check counts per size.
View the Mtsooning staples on Amazon →
Pros and Limitations
Pros
- Low-cost refills for an existing hot stapler.
- Two sizes in one pack for thin and thick plastic.
- A staple repair is quick and does not need plastic rod or filler.
Limitations
- Only works with compatible hot staplers and plastics.
- A staple repair is a mechanical stitch, not a full-strength weld.
- Staple compatibility is not universal across brands.
- No third-party testing data is on the page, so durability claims in the listing are the seller’s own.
How to Use Hot Staples Safely
- Clean the part and identify the plastic. Grind a shallow V along the crack for neater results.
- Align the crack, tape or clamp it, and set the stapler temperature to the manual’s recommendation for that plastic.
- Press staples across the crack at intervals. Keep each staple flush with the surface.
- Reinforce the back side of the repair when you can reach it, and let the part cool before moving it.
- Work with good ventilation because heated plastic releases fumes. PVC, in particular, is hazardous to heat. Avoid PVC unless the manual says it is acceptable.
- Wear gloves and protect eyes. The staple and tool tip get very hot. See our welding gloves review.
Related Guides
- Hot stapler kit review for a complete tool.
- Plastic welding kit review and plastic welding rods review for rod-based repairs.
- Plastic welding mesh as another reinforcement option.
Verdict
These Mtsooning staples are a refill item, not a welding consumable. Buy them only if you have a hot stapler and have confirmed the staple shape and size. For metal repairs, use proper welding equipment instead.
Check Mtsooning staples availability →
Frequently Asked Questions
Are Mtsooning welding rods the same as arc welding rods?
No. In this listing they are hot stapler staples in 0.6 mm and 0.8 mm sizes for plastic repair. They are not stick-welding electrodes and cannot be used in a stick welder. Check the product images and description before ordering.
Which plastics can hot staples repair?
Hot staples are used on thermoplastics such as ABS, PP, PE and nylon. Identify the plastic from its recycling stamp. Avoid PVC unless the stapler’s manual says it is safe, because heated PVC releases hazardous fumes. Do not use staples on thermoset plastics.
Should I choose 0.6 mm or 0.8 mm staples?
Use 0.6 mm for thin or small parts and 0.8 mm where you need more strength across thicker plastic. Your stapler may accept only one size, so check the manual first. Always test on scrap plastic.
Will these staples fit any hot stapler?
Not necessarily. Staple shape, width and wire thickness differ between stapler models. Compare your stapler’s manual and staple slot with the listing’s photos, and ask the seller if compatibility is unclear.
