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Polyvance Mini-Weld Model 7 Plastic Welder

• Weld high-melting-point plastics
• 200 watt ceramic core element
• Complete, ready-to-use kit
  • Description
  • Reviews
  • Videos

Repair Virtually Any Type of Plastic

The Polyvance Mini-Weld Model 7 Plastic Welder is an all-in-one plastic welder kit that is the latest in plastic welding technology. With this welder in your automotive workshop, you can easily mend a broken bumper, nylon radiator tanks and other plastic automobile parts seamlessly. The seven types of standard welding rods let you match any automotive plastic. The USC Mini-Weld Model 7 Plastic Welder can easily melt tough-to-melt plastics such as TPO, TEO, and polypropylene that you can easily repair with FiberFlex universal rods.

What comes included with the USC Mini-Weld Model 7 Plastic Welder?

  • Standard Welding Tip
  • Tear Drop Airless Welding Tip
  • 200 Watt Ceramic Core Heating Element
  • 10" x 5" stainless reinforcing wire mesh
  • 15 foot Polyurethane Welding Rod - 1/8 inch diameter, black
  • 15 foot ABS Welding Rod 1/8th inch (3 mm) diameter, black
  • 15 foot Polyethylene (LPDE) Welding Rod, 1/8 inch (3mm) diameter - natural
  • 15 foot TPO Welding Rod - 1/8 inch (3 mm) diameter, Gray
  • 15 foot Nylon Welding Rod - 1/8 inch (3 mm) diameter, natural
  • 4 foot (1.2 m) Polycarbonate Welding Rod
  • 15 foot FiberFlex Rod, 3/8 inch x 1/16th inch (9.5 mm x 1.6 mm) black
  • Plastic Repair DVD

How to weld using the USC Mini-Weld Model 7 Plastic Welder:

  • Clean the repair area with a good quality plastic cleaner and wipe with a clean cloth in a single direction
  • Bring out the DA sander with the correct sandpaper and work to remove paint, primer until bare plastic is exposed
  • Work on both the sides of the plastic and dust away with compressed air
  • Clean the surface again with the plastic cleaner and apply aluminum body tape on one side while you weld on the other. The aluminum tapes are a preferred choice as they can withstand heat from the welder
  • Use the teardrop shaped airless welding tip to grind along the crack line and round away the sharp edges before preparing to weld
  • Use the appropriate rod for the repair and set the temperature in your welder (approximately 830 °F)
  • When the welder realizes operating temperature, it is time to heat the tip of the rod with the welder and allow the rod to melt the base material
  • Continue the process till the crack is filled up completely
  • Follow the same process on the other side of the plastic
  • Grind away excess plastic with the tear drop welding tip
  • Abrade the surface with a DA Sander before you begin the process of retouching any further

Instructional Video - Urethane Weld

Instructional Video - Bumper Tab Repair

Instructional Video - Truck Side Panel Repair

Instructional Video - Airless Plastic Welder

Instructional Video - Element Replacement

Instructional Video - Model 7 Plastic Welder - What's Included

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