a single - phase portable device melts and sprays thermoplastic using 120 - v power . the device includes a vessel for receiving and storing thermoplastic , and heated hollow rod circulators that draw melted thermoplastic upward and redistribute it within the vessel to facilitate rapid and even melting . the device includes a heated hose and nozzle for spraying the material , hose storage area , and wheels and handle for moving device and spraying in multiple locations as desired .