Different geomembranes are best equipped to handle different environments, conditions, and project needs. The thickest, strongest geomembrane may not be necessary for your backyard koi pond; but is a perfect solution for controlling toxic, corrosive leachate within a landfill or waste management system.
You can determine which geomembrane is best for you by considering your particular project. How big will the liner need to be? What kind of chemicals or toxins will it come into contact with? Will it be exposed to sunlight? How long do you need it to last?