- Mini hot air gun is a perfect tool for DIY craft works. It can be used for embossing powder, heat-shrinkable film, clay, bump, rubber stamp, fast-drying paint, glue, catalytic adhesive bonding, rapid thawing, shrink PVC for packaging, seal wax patterning, DIY handmade soap or candle. It can be used not only to repair wires,but also for hand-made. Of course, it is definitely suitable for heat shrinkable tube.