METHODS FOR WELDING HDPE
![Welding](https://www.kingplastic.com/wp-content/gallery/welding/thumbs/thumbs_weld_03.jpg)
Extrusion welding
Extrusion welding allows the application of bigger welds in a single weld pass. It is the preferred technique for joining material over 6 mm thick. Welding rod is drawn into a miniature hand held plastic extruder, plasticized, and forced out of the extruder against the parts being joined, which are softened with a jet of hot air to allow bonding to take place.![heat-tacking](https://www.kingplastic.com/wp-content/gallery/welding/thumbs/thumbs_heat-tacking.jpg)