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A replacement plastic-welding tip only helps if the thread, welder, and repair method all match. The JOUNJIP Triangle Plastic Welding Replacement Tips are a two-tip set made for compatible JOUNJIP and Gino 80-watt plastic welders using a 1/4″-28 threaded connection. Their broad triangular face is useful when you need to melt, spread, or smooth material across a larger repair area, but these are not universal tips. This review explains the fit requirements, supported plastics, practical uses, limitations, and installation details you should check before buying.
Quick Verdict
Rating: Recommended with caveats
Best For: Owners of compatible JOUNJIP or Gino 80W plastic welders who need broad triangle-style replacement tips.
Bottom Line: The two-tip package gives you a simple replacement option with a 1/4″-28 connection and a broad working face for plastic repair. The main limitation is compatibility, so you should confirm your welder’s thread before ordering.
Key Takeaways
- You get two triangular replacement tips rather than a complete plastic welder.
- The documented thread size is 1/4″-28, so thread compatibility should be checked before purchase.
- The tips are intended for compatible JOUNJIP and Gino 80W plastic welders.
- The product listing identifies TPO, TEO, and PP among its intended plastic-repair applications.
- The product is specifically listed as not compatible with the Harbor Freight Chicago Electric welding kit.
- A retailer listing gives a 525°F maximum tip temperature, but the tip itself does not provide temperature control.
Key Specifications
| Specification | Detail |
|---|---|
| Brand | JOUNJIP |
| Model | 2-Tri-Tips |
| ASIN | B07Z9Q2C6W |
| Product type | Triangle plastic-welder replacement tips |
| Package | 2 replacement tips |
| Thread | 1/4″-28 |
| Compatible welders | Compatible JOUNJIP or Gino 80W plastic welders |
| Known incompatibility | Not listed for the Harbor Freight Chicago Electric welding kit |
| Listed plastics | TPO, TEO, and PP |
| Dimensions | 2 x 1 x 1.1 inches |
| Listed weight | 1.58 ounces |
| Maximum tip temperature listing | 525°F |
| Material note | Current manufacturer and retailer descriptions conflict between copper and brass, so confirm the current listing if exact alloy matters. |
| Typical uses | Plastic bumper, kayak, dashboard, and similar thermoplastic repairs when the plastic and filler are compatible |
What Are the JOUNJIP Triangle Plastic Welding Tips?
These are replacement working tips for an airless-style plastic welding iron, not a complete welding kit. They screw into a compatible welder using the documented 1/4″-28 thread and give you a broad triangular face for applying heat to plastic.
The wider face makes more sense for spreading, flattening, and working over a larger area than a narrow point-style tip. That can be useful on bumper cracks, kayak damage, dashboard plastics, and other repairs where you need to soften and work material across the repair zone.
You should still match the plastic and filler material correctly. A triangle tip transfers heat, but it cannot make incompatible plastics bond properly.
Who Should Buy It?
Best For
- You already own a compatible JOUNJIP or Gino 80W plastic welder.
- You want replacement triangle tips for bumper, kayak, dashboard, or similar plastic work.
- You prefer a broad tip that can spread heat across more surface than a narrow point tip.
Skip If
- Your welder does not use a 1/4″-28 threaded tip connection.
- You use the Harbor Freight Chicago Electric plastic welding kit identified as incompatible with these tips.
- You need a narrow rod-feed, pointed, or chisel-style tip instead of a broad triangular working face.
Before You Buy: Do not assume that every plastic welder uses the same thread. Confirm that your tool accepts a 1/4″-28 tip. JOUNJIP specifically lists these replacement tips for compatible JOUNJIP and Gino welders and says they do not fit the Harbor Freight Chicago Electric welding kit.
Key Features of JOUNJIP Plastic Welding Tips
Triangular Working Face
The main feature is the broad triangle-shaped face. Compared with a narrow point, a wider contact area lets you work across more plastic at once. That is useful when you are smoothing filler, blending material around a crack, or working over a reinforced repair.
The shape does not automatically create a stronger weld. Your result still depends on identifying the plastic, using compatible filler where needed, heating the material correctly, and avoiding excessive pressure.
1/4″-28 Threaded Fit
The documented 1/4″-28 thread is one of the most important specifications in this review. It gives you a clear compatibility check before ordering instead of relying only on the appearance of the tip.
JOUNJIP lists the replacement tips for its own and compatible Gino 80W plastic welders. A similar-looking tip with a different diameter or thread pitch may not install correctly and can damage the tool if forced.
Two-Tip Package
The package contains two triangle tips. That gives you a spare when a working tip becomes worn, damaged, bent, or difficult to clean. It also means you are buying replacement tips only, not the welding iron, rods, mesh, stand, or other accessories found in a complete plastic-welding kit.
Material Labeling
Material descriptions are not completely consistent across current listings. JOUNJIP’s own store describes its two replacement triangle tips as copper, while another retailer specification lists brass.
If the exact alloy matters for your application, confirm the current seller description before ordering. The more important practical checks for most buyers are the 1/4″-28 thread, the compatible welder, and the broad triangle shape.
Which Plastics Can You Use These Tips On?
The product information specifically names TPO, TEO, and PP and points to repair jobs such as car bumpers, kayaks, and dashboards. These are common situations where an airless plastic welder may be used to soften and fuse thermoplastic material.
The tip itself does not determine chemical compatibility. You should identify the base plastic and use repair material intended for that plastic. Mixing an incompatible filler with the damaged part can produce a repair that looks filled but has poor bonding.
Pro Tip: Look for a molded plastic identification mark on the back of the part before choosing filler rod. When possible, practice on scrap of the same material so you can learn how quickly it softens before working on a visible repair.
Using the Replacement Tips Effectively
Let the Welder Heat the Tip
A retailer listing gives these tips a maximum temperature of 525°F, but the replacement tip itself does not provide a temperature-control system. Heat is supplied by the welding iron.
Give the tool enough time to heat according to its instructions. Pressing hard because the plastic is not softening can put unnecessary force on the threaded tip and the repair surface.
Use Light, Controlled Pressure
Let heat soften the plastic instead of trying to force the triangle face through it. Light, controlled pressure gives you more control over how much material moves and helps reduce accidental gouging or distortion.
On a visible bumper or dashboard repair, it is usually easier to make several controlled passes than to overheat a large area in one pass.
Keep the Tip Clean
Plastic residue left on the metal face can interfere with clean contact on the next job. Once the tool has cooled to a safe temperature, remove residue according to the welder manufacturer’s cleaning guidance.
Avoid aggressive cleaning methods that damage the tip surface or threads. Inspect the threads before reinstalling a tip.
Change Tips Only After Cooling
JOUNJIP’s guidance for its threaded welder tips warns users to let the tip cool completely before unscrewing it. Hot metal can be easier to damage, and a damaged threaded tip can become difficult to remove.
Turn the welder off, unplug it when appropriate, place it in a safe stand, and wait until the tip is fully cool before changing it.
How It Performs in Real Use
Car Bumper Repairs
The broad triangular face suits repair work where you need to spread heat around a crack or blend repair material over a wider section of bumper plastic. TPO and PP are among the materials listed for the product, but you should identify the actual bumper material before selecting filler.
Kayak Repairs
JOUNJIP also markets these tips for kayak repair. The wide face can help smooth plastic over a damaged area, but kayak materials vary. Confirm the hull plastic and choose compatible repair material rather than assuming one rod works on every kayak.
Dashboard and Interior Plastic
A triangle tip can be useful for broader dashboard or interior-panel repairs where a narrow tip would take many passes. The tradeoff is that the larger working face may be harder to control around small details, edges, or tight corners.
General Shop Repairs
For bins, panels, housings, or other thermoplastic items, the two-tip set can be a convenient spare for a compatible welder. It is most useful when the damage is accessible and the triangle face can sit reasonably flat against the repair area.
Troubleshooting Common Plastic-Welding Issues
The Plastic Is Not Bonding
Check the material first. A hot tip can melt two surfaces without creating a reliable weld if the base material and filler are not compatible. Clean contamination from the repair zone and confirm that you are using suitable filler material.
The Surface Is Melting Too Quickly
Reduce how long the tip stays in one place and avoid excessive pressure. The 525°F figure is a maximum tip-temperature listing, not a recommendation that every plastic should be held at that temperature for the same amount of time.
The Tip Feels Loose
Stop using the tool and let it cool. Check that the threads match your welder and inspect them for wear or damage. Do not force an incompatible replacement tip onto the heater.
The Repair Looks Rough
Plastic welding often takes practice. Use a scrap section of matching material to learn the speed and pressure that produce a controlled melt. For visible repairs, leave enough material for any permitted finishing or sanding step recommended for the specific plastic.
Compatibility and Safety
These tips operate at temperatures capable of causing serious burns and melting surrounding material very quickly. Work on a stable, heat-resistant surface, keep the hot iron in an appropriate stand when not in your hand, and follow the welder manufacturer’s instructions.
Plastic can also produce fumes when overheated. Use the tool in an appropriately ventilated work area and follow the safety guidance for the plastic and filler material you are using.
Most importantly, do not remove or install the threaded tip while it is still hot. Allow the assembly to cool completely before handling the tip or attempting to unscrew it.
Pros and Cons
Pros
- Two triangle replacement tips are included.
- Documented 1/4″-28 thread makes fit easier to check.
- Broad working face is useful for spreading and smoothing plastic.
- Listed for compatible JOUNJIP and Gino 80W plastic welders.
- Product information identifies TPO, TEO, and PP repair applications.
Cons
- Not a universal replacement tip and specifically not listed for the Chicago Electric kit.
- The broad triangle face is less suitable than a narrow tip for tight or highly detailed areas.
- Current listings conflict over whether the tip material is copper or brass.
Is It Worth the Price?
These tips make the most sense as a replacement purchase when you already own the correct welder. In that situation, buying a two-tip set can be more practical than replacing an otherwise functional plastic-welding iron simply because its working tip is worn or damaged.
The value is weaker if you still need the welder, filler rods, reinforcement mesh, and other repair supplies. A complete JOUNJIP plastic-welding kit may make more sense for a first-time buyer who does not already have the required equipment.
Compatibility is therefore the main value test. If your welder accepts the documented 1/4″-28 triangle tip, the set is worth considering. If you are uncertain about the connection, verify it before spending money.
How It Compares to Alternatives
JOUNJIP also sells boot-style tips intended for narrower repair work and feeding plastic rod through the tip. That style may be better when you need to work around small tabs or confined repair areas rather than spread heat across a broad surface.
The brand also offers a flat-head and cone-tip set. Those shapes are more specialized for point work, holes, chisel-like contact, and other tasks where the triangle face is too broad. The Triangle Replacement Tips make the most sense when spreading and smoothing are your main priorities.
Frequently Asked Questions
Are these tips compatible with every plastic welder?
No. The documented connection is 1/4″-28, and the tips are listed for compatible JOUNJIP and Gino 80W plastic welders. JOUNJIP specifically says these triangle tips do not fit the Harbor Freight Chicago Electric welding kit.
Do you get the plastic welder with this package?
No. This listing is for two replacement triangle tips. You need a compatible plastic-welding iron and the correct repair consumables separately.
Are the JOUNJIP triangle tips brass or copper?
Current descriptions are inconsistent. JOUNJIP’s own store describes its replacement triangle tips as copper, while another retailer specification lists brass. Check the current seller description if the exact alloy affects your buying decision.
What plastics are these tips intended to repair?
The product information specifically lists TPO, TEO, and PP and mentions bumper, kayak, and dashboard applications. You should still identify the plastic and use a compatible filler because the metal tip alone does not determine whether two plastics will bond.
What temperature should you use?
A retailer listing gives a maximum tip temperature of 525°F. The replacement tip itself has no temperature control, and different plastics respond differently to heat, so follow the welding-tool and material instructions rather than using one universal temperature rule.
Do you need tools to replace the tips?
The threaded design is intended to screw in and out without a separate installation tool. However, you should wait until the tip is completely cool before trying to unscrew it, and you should never force mismatched threads.
How long do the replacement tips last?
There is no verified fixed lifespan for the tips. Service life depends on heat cycles, pressure, cleaning, and handling, so replace a tip if it becomes significantly bent, cracked, damaged, or no longer threads securely into the welder.
What is the most common buying mistake?
The biggest mistake is buying by shape alone. Check the 1/4″-28 thread and your welder model first, then confirm that a broad triangle tip is the right style for the repair you plan to make.
The Bottom Line
The JOUNJIP Triangle Plastic Welding Replacement Tips are a sensible replacement set if you already own a compatible JOUNJIP or Gino 80W welder and want a broad triangle tip for bumper, kayak, dashboard, or similar plastic repairs. Their strengths are the documented 1/4″-28 fit and useful broad working face, while their main limitations are restricted compatibility and inconsistent material labeling across current listings.
Buy them for the correct threaded welder and the correct type of repair. Skip them if your tool uses another connection or you need a narrow rod-feed, pointed, or chisel-style tip.
Ready to Buy?
Check the latest product details and confirm the 1/4″-28 fit before you decide.
