Spray-on foams work by forming a thin, flexible layer over the day’s waste that acts as a protective barrier. When applied, the foam quickly expands and hardens, covering exposed trash and preventing odors from escaping. It also keeps litter from blowing away, deters pests, and reduces the risk of fires by isolating flammable materials.
The foam is lightweight and requires minimal space compared to traditional soil, which helps preserve landfill capacity. Operators can apply it quickly using specialized equipment, making it efficient for daily use. Once hardened, the foam can remain in place until the next day or until new waste is added, depending on the type of material and operational practices. Some foams are designed to be biodegradable, breaking down naturally over time as part of the landfill mass.
