I have a Trend AirShield with a broken headband. I have emailed them asking for a replacement, but am not optimistic. I am thinking of welding it. A neighbor has a plastic welding kit he has never used, but will lend me. He does not have a HDPE stick though. In googling, I find two things...
1) HDPE and PP both weld at 572 degrees. He has a PP stick. Can I use that?
2) One reference said you don't need a stick at all; you just melt both sides and push them together.

So, will either of these work for me?P1020146.jpgP1020146.jpg