This machine is a hot air sealing machine with high speed and high output.The machine is specially designed to provide a fast, simple and reliable method for application of a hot melt tape over a sewn seam or glued joint to create a waterproof product such as manufacturing of PVC, PU, rubber, three layer fabric waterproof, leak proof clothing or rubber products such as: protective clothing, raincoat, ski suit, diving suit, space suit, tent, car cover, boat cover, launch balloon etc.