Research Seminars @ Illinois

Part 1 Welding Different Geomembrane Polymers will focus on the following: • Welding PE and PP materials (HDPE, LLDPE. fPP and PP-R) • Welding PVC and similar products ( PVC, CSPE and EIA)

Part 2: Welding Equipment and Selection will focus on the following: • Hot wedge fusion welder – solid and split wedges • Hot air fusion welder • Hand extrusion welder • Adhesive and solvent welding • Data logging technology and its benefits • Equipment setup

Part 3 Welding Parameters will focus on the following: • Understanding Heat, Speed, and Pressure • Establishing Welding Windows • Importance of Welding Windows • Impact/Dangers/Wrinkles from Ambient conditions • Parameter recommendations • Pre-weld Testing • Correct seam overlap • What if FML is not clean (dust, water, painting)

Part 4 Importance of Seam Testing will focus on the following: • Non-Destructive Testing – air channel, pick, air lance, and vacuum testing • Destructive Testing – In-house and 3rd Party Testing • Factory and Field Testing • What if seam test(s) fails - Patching • Project goal is a liner system that does not leak – work together-welder, CQA, regulator,

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