The caulking gun is a simple mechanical device that uses the principle of leverage. It can be used in conjunction with a caulking bucket or caulking stick to easily press the caulking in the caulking bucket from the tip, which greatly saves operation time. The caulking gun uses the lever principle and uses the rivet as the support point to push the propelling piece forward, and then uses the friction between the propelling piece and the propelling rod to move the propelling rod forward and press out the caulking.

Classification of caulking guns:

According to the striking force, it is divided into light-duty caulking guns and heavy-duty caulking guns, light-duty guns below 800N, and heavy-duty guns above 800N;

According to the material, it is divided into iron caulking gun, aluminum tube caulking gun and plastic caulking gun;

According to the different caulkings used, it is divided into single-barrel caulking gun and double-barrel caulking gun.