Polyvance's History With Nitrogen Plastic Welding

Polyvance was the first company to commercialize nitrogen plastic welding in 2006 and has led the development of this technology since that time. Our expertise allows us to manufacture the most advanced nitrogen plastic welders and provide the best quality training in the industry.

Why Nitrogen?

You may be wondering, "Why use nitrogen to weld plastic? Why not just use hot air?" The reason is that welding with nitrogen makes a stronger weld.

Air is about 80% nitrogen and 20% oxygen. The oxygen in the air is what causes the problem. When you weld plastic with hot air, the melted plastic gets oxidized or burned in the process. When you weld with air, the plastic will literally burn. You can see smoke and sometimes even ash or sparks will form in the weld zone.

How do you make a fire? You need a source of fuel, you need heat, and you need oxygen. If you snuff out the oxygen, the fire goes out. That's the idea behind using nitrogen for welding. Welding with hot nitrogen gas flushes the oxygen out of the weld zone. The plastic melts cleanly with no contamination, no smoke, no fire, no oxidation. The melted plastics can then fuse together with no contamination for maximum strength.

This video demonstrates the difference between hot air welding and nitrogen welding. You can see the plastic smoking and burning when it is welded with hot air, which doesn't happen when using nitrogen.

Use the Nitrogen Welder Temperature Setting Chart to help you adjust the temperature of your nitrogen plastic welder.

Polyvance's 8000 Series! A Nitrogen Plastic Welder for Every Shop and Every Budget!

This PDF compares our newest line of nitrogen plastic welders -- the 8000-series. With 8 welders in the line, the 8000-series offers an option to every shop and every budget. The chart makes it easy to determine which nitrogen plastic welder will be best for your shop.
This page includes an HTML chart comparing the 4 versions with carts.

Polyvance Nitrogen Plastic Welders vs the Competition

See why it is more beneficial to purchase a Polyvance nitrogen plastic welder rather than another brand of nitrogen plastic welder.

When Will I See a Return on My Investment?

Click on the link below to be taken to the 8000-Series Payoff Sheet. Plug in your shop's numbers and the price of the welder to calculate how long it will take to break even on your purchase.

8000-Series Payoff Sheet (PDF)

Training

Polyvance offers free online training, paid online training, as well as paid hands-on training courses. Click to view all of Polyvance's Training Options.