Silicon Caulking Gun

Dispensing Mechanism: The primary function of a caulking gun is to apply consistent pressure to the back of a caulk tube's plunger, pushing the material out through the nozzle. ​Frame/Barrel: The gun has a frame or barrel where the caulk cartridge is placed. The size of the gun corresponds to the size of the cartridge it can hold (e.g., standard 10 oz. cartridges). ​Plunger Rod: A metal rod, also known as a push rod, runs through the gun. It engages with the plunger at the back of the caulk cartridge.