Hand pressure glue gun is usually based on pressure glue guns, "drive shaft" forward and make the mucilage was out to complete the construction process, if you are choosing thin bottle series of products, and thin bottle in the process of the glue bottle can produce certain expansion, due to stress, if you only stop in the process of using pressure on glue guns, recovery of expansion and contraction of thin bottle from right now, With the inertia and forward thrust of the "driving shaft" of the glue gun, even if the glue gun stops exerting pressure, the glue of the glue nozzle will continue to flow out a little, which will bring inconvenience to the builders and affect the construction quality. Therefore, when using, because of the need to stop construction glue, should immediately with the hand quickly press the glue guns spring parts of iron (usually we use glue gun hand thumb lightly press), which can put forward "drive shaft" inertia reduced to zero, because of the bottom cover to stop compression, recovery plastic bottles of expansion shrinkage stress, can make the bottom cover backwards slightly back, This will greatly reduce the chance of slurry outflow.