When you use high-viscosity urethane, you need a caulking gun that makes dispensing the urethane easier. Here is what a 26 to 1 caulking gun does: if you squeeze the handle with 1 pound of pressure it puts 26 pounds of pushing pressure on the urethane. With that kind of power you can easily dispense high-viscosity urethane even in cold weather. Our caulking gun has a revolving barrel, zinc alloy handle, and a thumb release. The barrel is welded steel. It is made in China to our specifications