FGI Welding Basics  Part 2: Types of Welding and Equipment Selection

Welcome to Part 2 of our Online Welding Basics for Geomembranes course, presented by Gus Fauci from DemTech, Eddie Weiser from Leister Technologies, and Dr. Timothy Stark from the University of Illinois at Urbana-Champaign. In this video session, we shift from understanding polymer characteristics to exploring the practical equipment and techniques used in geomembrane welding. You'll see demonstrations of the three primary welding methods: hot wedge fusion welding with solid and split wedge configurations, hand extrusion welding for detail work and repairs, and hot air fusion welding for sensitive materials. Our presenters will guide you through equipment selection criteria, proper manufacturer setup procedures, and the increasingly important role of data logging technology in quality assurance. We'll also cover specialized techniques including adhesive and solvent welding for PVC materials, giving you the knowledge to match the right equipment and methods to your specific project needs.
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Our team

Meet your instructors

Eddie Weiser
Eddie Weiser is an expert in the field of geomembrane welding and is frequently asked to consult with industry professionals and academics in such matters, including the analysis of welding defects. Eddie has been working at Leister Technologies AG since 2013 and has been heavily involved with the development and launch of several geomembrane welding machines. This work has taken Eddie all over the world where valuable insights and knowledge has been exchanged in all aspects of geomembrane welding.
Gus Fauci
Gus Fauci has over 29 years of welding, testing and training experience in the geosynthetic industry. He has more than 10 million square feet of installation experience including geomembranes, geotextiles, and geocomposite. Gus provides testing and technical support with numerous types of materials, such as establishing welding specifications for material manufacturers. Gus has conducted advanced training workshops for thousands of technicians and CQA personnel and proctored hundreds of Certified Welding Technician Certifications for the liner industry.
Dr. Timothy D. Stark
Dr. Timothy D. Stark is a Professor in the Department of Civil and Environmental Engineering at the University of Illinois at Urbana-Champaign with an expertise in Geotechnical Engineering. He is the Technical Director of the FGI, which is an industry sponsored research organization investigating the advantage and disadvantages of geomembranes for containment and seepage applications. His research interests include the performance of geomembranes and stability of geosynthetic lined slopes.

Course Structure

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