WORKPRO Caulking Gun, Adjustable Hand Caulk gun, Anti-dripping Regulating, Sealant Silicone Gun with Comfort Grip, 9:1 & 18:1 Thrust Ratio, Smooth Round Rod for 10oz Caulk tubes

Caulking guns, also called caulk or cartridge guns, dispense a controlled flow of products such as caulk, sealants, and adhesives from a tube or cartridge. A manual caulking gun consists of a frame that holds the tube, a trigger, and a rod that moves forward when the trigger is depressed, dispensing the product. Manual caulking guns have a thrust ratio; the higher the thrust ratio, the easier it is to dispense the caulk, sealant, or adhesive. Air-powered or pneumatic caulking guns also have a frame and a trigger but are used with an air pressure regulator that pushes the product from the tube using air pressure instead of a rod.