For the AEROSEAL process, a sealant is transformed into a gaseous state using heated compressed air. The aerosolized particles travel through the air duct sytems seeking leakage that is located throughout the ductwork. The adhesive duct sealing particles attach directly onto the edges of any leakage, effectively sealing it without coating the inside of the ductwork. As the air stream makes a sharp turn to exit through a leak, the particles collide with and adhere to the leak edges. One leak after another up to a diameter of 1.5 cm are sealed and withstand a pressure up to 2.000 Pa.