For polypropylene, high density polyethylene and other high temperature thermoplastics, 1/4" round rod when used with any of the 40s Series and FUSION Series welders. Some applications as follows: Laying down of Powercore (copper wire wrapped in plastic) and Plating tank manufacture.

OD = 0.54

ID =   0.41

WELDING ROD SIZE 1/4 ROUND ROD