LIQUID BOOT® 500 PLUS is a high-performance vapor intrusion composite membrane consisting of two barrier materials: LIQUID BOOT® 500 and VI-20™. VI-20™ is a 7-layer co-extruded geomembrane made using high quality virgin-grade polyethylene and ethylene-vinyl alcohol (EVOH) resins that provide extremely low VOC vapor transmission rates and mechanical properties such as impact strength. Liquid BOOT® 500 is a spray-applied, polymer-modified asphalt-based membrane which provides additional vapor transmission barrier performance and nuisance water intrusion protection
