Wulf's heavy duty Silicon gun of 9 inches is very handy and easy to use for a wide variety of purposes. The trigger bound activator works best by pushing the silicone gel on to the area that needs correction. The gun works well with most standard silicon glue tubes and is perfect for filling up gaps and crevasses and ensuring that your prized possessions are always functional and new. The working pressure of the silicon guns stands at 6 bar. It also comes with an air-pressure regulating valve to make the use simple.