What are the different types of welding techniques used with geomembranes?

Various welding techniques are used with geomembranes to ensure strong and leak-proof seams. This includes thermal fusion welding, extrusion welding, and hot wedge welding.

Thermal fusion involves heating the geomembrane edges directly before pressing them together to form a bond. Extrusion welding uses a bead of molten material, extruded from a welding rod, to join the geomembrane sheets along their edges. Hot wedge welding employs a heated wedge to melt the geomembrane surfaces, which are then pressed together to create a seam as the wedge moves along the join.

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