Touch 'n Seal foam single-component polyurethane foam is a low expansion polyurethane foam system great for air sealing around windows and doors, plumbing, electrical and HVAC penetrations, seams and cracks in framing, and other small openings. Cures fully in 20 minutes, and its total expansion is less than 10% - making it perfect for tight spaces. Comes with a 10' hose and a 16lb cylinder wand system for application.