Ah. No problem. We can sell you a tube set with mixer and loan you the gun (need it back in a couple days though - we glue the roofs onto the boats with it!) I think that a tube set is about $40. Enough to do a 3/8" bead maybe 25' long. I used one entire set of tubes for the six sections of mesh in my hood sides. Give me a call if you want to come by the boat factory to pick up - or I could bring it out one evening. Up to you. We're out by the airport, behind the original Sonny's.