Glue Applicator Gun for use with the Equibond adhesive that we sell. This gun is designed for 2-part adhesives with a 10:1 ratio and packaged with concentric cylinders. Please note that this is very different than a simple 'caulking gun' that you might find in a hardware store. It is also a different style gun than the type used with 'side-by-side' cylinders holding the two parts (e.g. the Vettec style guns).