Most plastic welding kits seem to use a specialized tool that looks like the child of a soldering iron and a hot glue gun that ranges from $30-150. It's nice to know that friction welding works ...

New, recyclable plastic lets you weld pieces together with a hairdryer A new polymer can dynamically rearrange its chemical bonds at high … John Timmer – Nov 18, 2011 11:33 am ...

Now, finally, we have evidence you can use JB Weld to fix an engine. [Project Farm] ... For polymers, I currently use JB Weld plastic bonder with 15 minute set time.