Trisoplast® is a robust, flexible, durable and sustainable isolation solution, developed in The Netherlands and used worldwide for more than 20 years now. This patented top product is used as an environmentally protective bottom liner for landfills, tank terminals, industrial sites and infrastructure. Trisoplast is also the solution for making underground structures watertight, and for the construction of ponds and water basins, for example. Trisoplast, developed by Tritech Natural BV, consists of sand mixed with a special clay-polymer component and water.