Caulking Guns, Tile Cutters & Sealants

How does a 'Dripless' caulking gun stop sealant from oozing out of the tip when you release the trigger?

Next

 Correct IncorrectThe internal dog-leg drive plate automatically retracts the drive rod slightly when the trigger is released, instantly relieving pressure inside the cartridge.

How does a 'Dripless' caulking gun stop sealant from oozing out of the tip when you release the trigger?

• It sucks the caulk back into the tube with a vacuum
• The drive dog automatically releases back-pressure on the plunger rod on trigger release
• A mechanical valve clamps shut on the plastic nozzle
• It freezes the tip with dry ice