Nitrogen welder, only $3,744.00 Polyethylene and HDPE are tough to weld. I often use my $40 hot glue stick gun with a $20 pack of infinity polyethylene bonding

Nitrogen welder, only $3,744.00 Polyethylene and HDPE are tough to weld. I often use my $40 hot glue stick gun with a $20 pack of infinity polyethylene bonding glue sticks from Super TAC 500. I preheat the surfaces to be bonded with a DrillMaster heat gun ($14.95 at Harbor Freight)