Geomembranes for personal and environmental protection
EVAL™ EVOH resin is used in personal and environmental protection applications such as geomembranes. Conventional secondary landfill liners made of polyethylene have excellent mechanical properties and therefore act as a barrier to heavy metals, but in combination with EVAL™ they can do far more. Incorporating EVAL™ into the primary or secondary liner improves its ability to act as a barrier to gases, organic solvents and other volatile organic compounds. As a barrier to organic solvents, which are typically found in leachate, EVAL™ can prevent soil and water contamination.
In radon membranes, an EVAL™ layer reduces gas permeability compared with aluminum and single-layer structures. EVOH barriers, which are already commonly used in Europe, greatly reduces radon infiltration.