Foam injection is a technique used in various industries, including construction and automotive, to fill gaps, insulate, or provide structural support. This process involves injecting a two-part foam mixture that expands upon contact, creating a solid mass that can harden and adhere to surfaces. It is often used for sealing leaks, improving energy efficiency, and enhancing the strength of materials. In the construction industry, foam injection is commonly applied in foundation repair and insulation. It helps to stabilize soil under foundations and can also be used to insulate walls and roofs, reducing energy costs. The quick-setting nature of the foam allows for efficient application and minimal disruption to surrounding areas.