The hot-melt glue gun is one of those tools that often elicits a "Wow" from other tradesmen on site. When I first used one, it was a lot like my first encounter with a pneumatic nail gun: "Wow, is this for real?" followed by "Can I try it? How well does it hold?" and finally, "How much does it cost and where can I get one?" Like nail guns, a glue gun won't answer all your fastening needs, but in some applications, there's nothing better. An Extra Set of Hands A hot-melt glue bond has moderate strength, but it's strong enough to hold considerable pressure from clamps. It doesn't have much impact resistance, however, which means it can