Nonstick PTFE coating The expanding foam is coated with a nonstick PTFE surface, making it easy to clean and helping prevent foam from spilling. 1Handed adjustment The foam dispenser allows you to adjust the foam rate and dispense with one hand, increasing efficiency and control. Applications Dispenses foam for sealing, filling, and insulating small gaps around doors and windows, bathtubs, air conditioning holes, and more. User guidance Read the operating manual before use. Release air and foam pressure on first use and after any maintenance. Clean the foam nozzle immediately after each use. Usage scenarios Sealing gaps around doors and windows to reduce drafts and improve insulation. Filling gaps around bathtubs and bathroom fixtures to prevent moisture intrusion. Sealing HVAC holes and other small gaps in appliances or installations to minimize air leaks.