Press the release at the rear of the gun with your thumb, releasing the plunger at the back of the gun.

Pull the plunger all the way back. Put the tube into the gun, with the nozzle in the front.

Push the plunger tightly into the back of the tube, and remove your thumb. The gun is now loaded.

Pull out the red plug on the top of cartridge, and install the mixer nozzle.

Prior to dispensing into the anchor hole, squeeze out separately the mortar until it shows a consistent grey color, and discard non-uniformly mixed adhesive components.

Fill the hole up to approximately two-thirds with adhesive. Slowly withdraw the static mixing nozzle as the hole fills to avoid creating air pockets.

Squeeze the handle or trigger of the gun slowly while drawing the gun toward you. When you can't squeeze the handle any more release it. It will automatically spring back. When it is in its original position, you're ready to squeeze again. How hard you squeeze the trigger and how quickly you move the gun will determine how much caulk is applied at each spot. Remember, more caulk will come out at the end of each squeeze.

When you stop to fill the hole, please press the silver part of the back of caulking gun to stop the material coming out continuously from the cartridge.