A portable, self-contained system designed for insulation and sealing applications, these sets combine pre-pressurized chemicals in two separate containers. Upon dispensing through a specialized nozzle, the components mix, reacting to create expanding foam. This foam fills gaps, cracks, and voids, providing thermal insulation and air sealing to prevent drafts and energy loss. A common application is sealing around windows, doors, and piping penetrations.
The advantage of such a system lies in its convenience and portability, offering a practical solution for on-site insulation and sealing projects where larger, more complex equipment is not feasible. Its use contributes to improved energy efficiency in buildings by reducing air leakage and minimizing heat transfer. Historically, these systems have evolved from industrial applications to become more accessible to homeowners and contractors for smaller-scale projects and repairs.