About Plastic Welding Kits
Plastic welding kits give you everything you need to start welding plastics in one purchase. Whether you’re fixing a cracked plastic bumper, fabricating a polypropylene tank, repairing a flooring membrane or welding ACM panels, the right kit removes the guesswork and gets you a strong, lasting weld first time.
Each Plastic Welding Tools NZ kit includes a hot-air welder, a selection of welding rods matched to the most common plastic types, the welding shoes (speed nozzles) needed for the application, and the supporting accessories — pressure rollers, brass brushes, and a carry case. The result is a single, calibrated system rather than a hodge-podge of mismatched parts.
The range covers kits configured for the most common New Zealand applications:
Fabrication kits — general-purpose plastic welding for workshops, tank-building, and one-off repairs.
Automotive kits — designed for plastic bumper repair, splash guard repair, and vehicle interior plastics. The most common kit we send out.
Flooring kits — vinyl and PVC flooring seam welding for commercial fit-outs.
Roofing kits — TPO, PVC and EPDM membrane welding for roofers and waterproofers.
Tarps & covers kits — heavy-duty PVC and polyethylene welding for industrial covers, awnings, and pool covers.
ACM panel kits — for welding the aluminium composite panel cores used in commercial signage and cladding.
All kits use Techspan-engineered tools and are supported in New Zealand with spares and accessories available locally. If you need help choosing the right kit for your job, see our guide on how to identify which plastic you’re welding and what to consider before you buy a plastic welding tool.
How to choose the right plastic welding kit
The right kit comes down to three things: what plastic you're welding, the application, and how often you'll use it. Walk through these in order and the answer is usually obvious.
2
Match the kit to the job
Automotive bumper repair, flooring seam welding, roofing membrane work and ACM panel fabrication each have a purpose-built kit. The kits include the right rod stock, nozzles and rollers without you having to assemble them.
3
Pick the duty cycle
Occasional repairs and hobby use are well-served by the Rion-based kits. Daily trade fabrication or production work needs the higher-output welders found in our roofing and industrial kits.
Kit types and what they include
| Kit | Best for | Typical contents | Plastic types |
|---|
| Automotive kit | Plastic bumper repair, splash guards, interior trim | Hot-air welder, PEMD rod, round speed nozzle, pressure roller, brass brush | PEMD, PP, ABS |
| Fabrication kit | Workshop welding, one-off repairs, mixed jobs | Hot-air welder, multi-plastic rod selection, multiple nozzles, rollers, brush | PP, PE, PVC, ABS |
| Flooring kit | Vinyl and PVC flooring seam welding | Higher-output welder, PVC rod, flooring-specific nozzle, edge roller, spatula | PVC, vinyl |
| Roofing kit | TPO, PVC and EPDM membrane welding | Higher-output welder, membrane rod, wider seam nozzle, penny roller, brush | TPO, PVC, EPDM |
| Tarps & covers kit | PVC tarps, awnings, pool covers, banners | Hot-air welder, PVC rod, lap-weld nozzle, pressure roller, eyelet tools (optional) | PVC, PE |
| ACM panel kit | Aluminium composite panel core welding for signage / cladding | Hot-air welder, PE rod, fine nozzle, finishing roller | PE (ACM core) |
Why buy a kit rather than assemble individually
- Calibrated combination. The welder, rod, nozzle and roller in each kit are matched. You don't have to work out which nozzle takes 4mm rod or whether the roller will mark PVC.
- One purchase, one delivery. Faster to get going on a job, fewer fittings missing on day one.
- Better value than separate parts. Kits price the bundle below the sum of the individual parts.
- Right rod, right plastic. The rod stock matches the plastic the kit is designed for, removing the most common cause of failed welds.
Quick rule
If you can name the plastic and the application, the right kit is usually obvious. If you can't, identify the plastic using a quick burn or float test first — getting the rod wrong is the single biggest cause of a failed plastic weld.
Frequently asked questions
Which plastic welding kit is best for repairing a car bumper?
For automotive bumper repair, choose an automotive kit. Most modern bumpers are PEMD (polyethylene medium density), so the kit should include a hot-air welder like the Techspan Rion, PEMD rod in 3mm and 4mm, the speed nozzle for round rod, a pressure roller, and a brass brush. The Rion-based automotive kit covers this combination.
Do I need a different kit for roofing membranes versus PVC tarps?
Yes. Roofing membranes (TPO, PVC, EPDM) typically need higher-output hot-air welders and a wider seam roller for full-coverage welds, plus the right welding rod for the membrane type. PVC tarps and awnings can be welded with general-purpose hot-air kits using PVC rod and a narrower roller. The roofing kit and the tarps & covers kit are configured for these jobs respectively. If you're unsure, see our PVC awnings welding guide.
Can I weld more than one plastic type with the same kit?
Yes — the welder and most accessories work across plastic types. What changes is the welding rod (which must match the plastic being welded) and sometimes the speed nozzle. A fabrication kit typically includes rods in several common plastics so you can switch jobs without buying separate kits. See how to identify the plastic you're welding first.
How long does a plastic welding kit last with regular use?
The welder itself, with normal cleaning and occasional element replacement, will last many years of daily commercial use. The consumables — welding rods, brushes, speed nozzles, pressure rollers — wear with use and are replaced as needed. Replacement heating elements, carbon brushes and accessories are supported in New Zealand.
Are these kits suitable for hobbyists, or only trade?
Both. The smaller fabrication and automotive kits built around the Techspan Rion are well-suited to hobbyists, DIY repairs and occasional use. The roofing and industrial-membrane kits are configured for trade fabricators with daily use. The welder duty cycle is the main difference. See what to consider before you buy a plastic welding tool.
Is plastic welding as strong as the original plastic?
When done correctly, a hot-air or extruder weld can reach 80-100% of the strength of the parent material. The key variables are rod-to-substrate match, joint preparation, temperature and welding speed. See how strong plastic welding is in practice for the data.
Need help choosing the right plastic welding kit?
Tell us about the job: the plastic you're working with, the wall thickness, and how often you'll use the tool. We'll recommend the right kit, welder or accessory for the application.
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