AV-278 Low Vis Hydro
Injected as a single component, catalyzed AV-278 Low Vis Hydro is a moisture activated MDI-based polyurethane resin. The chemical reaction of this product is catalyzed by using AV-279 Low Vis Accel and uses moisture as an initiator. AV-278 was designed with soil permeation in mind – low viscosity for penetration with very high expansion to fill voids, stop active or potential water leaks, and stabilize soils. AV-278 withstands wet/dry cycles, permeates well, and reacts with water to form a dense, closed-cell, impermeable semi-rigid foam.