Lower trial weld strengths in polyethylene seams

October 1st, 2023

Polyethylene (PE) seaming techniques are used in the field to fabricate rolls of geomembranes into liner systems. There are two predominant methods used: hot wedge “fusion” welding and “extrusion” seaming. Over the past year, installers have noticed lower trial weld strength than in years past. This makes for much discussion on the jobsite between certified […]

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