Akfix 805 is a fast-curing, single-component aerosol polyurethane foam designed for general-purpose filling, sealing, and insulation applications. It expands upon application and cures by reacting with moisture in the air, forming a strong, durable, and airtight seal. Commonly used in construction for filling gaps, cracks, and cavities around doors, windows, pipes, and insulation panels, it offers excellent adhesion to most building materials like concrete, wood, metal, and plastics. Once cured, it can be trimmed, sanded, and painted for a clean finish.