Polyvance Mini-Weld Airless Plastic Welder (Model 7) | 5700HT

Product Overview

The Polyvance Mini-Weld Airless Plastic Welder (Model 7) is an industry-standard, professional-grade system designed to perform permanent, structural repairs on virtually any automotive thermoplastic. Engineered around a highly reliable 200-watt ceramic core heating element, this kit allows technicians to easily melt and fuse high-melting-point plastics, such as underhood nylon radiator tanks.

Unlike traditional two-part chemical adhesives that require extensive prep, adhesion promoters, and long curing times, this airless welder provides instant results. Paired with Polyvance’s revolutionary FiberFlex universal rod, it makes easy work of notoriously difficult "problem plastics" like TPO and Polypropylene. Packaged in a custom molded case with a comprehensive assortment of welding rods and accessories, the Model 7 is a massive time and money saver, allowing shops to quickly repair expensive bumpers, headlights, and interior trim pieces rather than replacing them.

Key Features

• Ceramic Core Technology: The 200-watt ceramic heating element provides exceptionally fast warm-up times and vastly outlasts standard heating elements, ensuring maximum reliability in active shop environments.
• Variable Temperature Control: Features a dedicated temperature control box equipped with a belt clip. This allows for maximum mobility around the vehicle while letting you perfectly dial in the heat for different types of plastics.
• Universal FiberFlex Rods: Includes Polyvance's carbon and glass-fiber reinforced FiberFlex rod. It creates strong, easy-to-sand, feather-edgeable bonds on "problem" plastics (TPO, TEO, PP) without rolling up or requiring messy adhesion promoters.
• Zero Cure Time: Welded repairs can be rapidly cooled with water and sanded immediately, drastically reducing shop cycle times compared to chemical epoxies.
• Comprehensive Ready-to-Use Kit: Includes 8 different types of color-coded plastic welding rods, two easy-to-swap welding tips (standard and tear-drop), stainless reinforcing wire mesh, and a wire brush.

What's Included?

• Qty: 1 | Mini-Weld Model 7 airless plastic welder with built-in temperature control
• Qty: 1 | Custom storage case
• Qty: 1 | Starter pack of eight different types of plastic welding rods
• Qty: 1 | Stainless steel reinforcing mesh (5" x 10")
• Qty: 1 | Stainless steel wire brush
• Qty: 2 | Airless welding tips
• Qty: 1 | Welder stand
• Welding Rods (with the exception of the polyurethane, all welding rods are 12 inches long.)
  • Qty: 1 | 15 ft continuous roll of Polyurethane, 1/8" diameter round profile, Natural
  • Qty: 15 | Polypropylene, 1/8" diameter round profile, Black
  • Qty: 15 | ABS, 1/8" diameter round profile, White
  • Qty: 15 | LDPE, 1/8" diameter round profile, Natural
  • Qty: 15 | TPO, 1/8" diameter round profile, Gray
  • Qty: 15 | Nylon, 1/8" diameter round profile, Natural
  • Qty: 4 | Polycarbonate, 1/8" diameter round profile, Natural
  • Qty: 15 | FiberFlex, 3/8" x 1/16" profile, Black

Technical Specifications

Ideal Use Cases & Applications

• Collision Center Bumper Repair: The go-to tool for fixing cracked, torn, or punctured TPO and Polypropylene bumper covers, saving the cost and delay of ordering replacement panels.

• Underhood Plastics: Easily reaches the high temperatures required to permanently fix cracked nylon radiator tanks, fan shrouds, washer fluid reservoirs, and battery cases.
  

• Headlight Tab Repair: Perfect for melting and rebuilding broken plastic headlight and taillight mounting tabs.

• Powersports & Marine: Highly effective outside of the automotive space for repairing cracked ATV/UTV fenders, RV panels, boat hulls, and kayaks.

Common Questions (FAQs)

Q: How is this different from a standard soldering iron?
A: While it looks similar in form, the Mini-Weld Model 7 features a much more powerful 200-watt ceramic core element designed specifically to achieve the rapid heat transfer required to melt heavy automotive plastics. It also features specialized tips designed to smoothly melt and spread plastic welding rods, rather than bead solder.

What kind of plastics can I repair with this?
A: You can repair virtually any thermoplastic. The kit includes 8 different types of matching rods (ABS, Polypropylene, Polyurethane, Polycarbonate, etc.). For hard-to-identify plastics, or oily plastics like TEO and TPO, the included FiberFlex universal rod works perfectly.

Q: Do I need an air compressor?
A: No. This is an airless plastic welder. Unlike nitrogen or hot air plastic welders that require an air source to blow heated gas onto the plastic, this unit transfers heat via direct physical contact through the specialized heated shoe tips.

Q: Can I replace just the heating element if it breaks?
A: Yes. Polyvance offers replacement ceramic heater cores (SKU: 6012), meaning you do not have to buy an entirely new kit if the element eventually wears out from heavy shop use.

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