Support for Weld of Geomembrane is a geosynthetic product developed by Plastisul to perform restorations and detailed treatment through extrusion in construction lines where polyethylene geomembrane is used.

Soldering through extrusion provides heat and an extruded fillet of melted polyethylene from the same raw material of the PEAD Geomembrane. The melted polyethylene fillet is placed on the blankets edge or between the two surfaces (flat soldering) to be soldered. It is a fact that soldering through extrusion is much more difficult to carry out than soldering through plug or hot air and consequently operating process is much slower, but this is the only method available to make repairs. As in the soldering through plug or hot air, the solder must be gauged to fit the blade temperature and the solder additional support.

Since repairs, perforation patches, and detailed treatments are always necessary, this kind of solder is accomplished by the extrusion soldering process. Surfaces are temporarily joined with hot air before being soldered. The area to be soldered must be rubbed with sandpaper, so that the extruded material better adhere to the surface. Make sure that the panel material be not removed in excess when rubbing with sandpaper.