A range of sealant guns suitable for different applications. A Sealent gun helps you to apply a nice even line or can be used to fill in gaps. A solid frame holds the tube firmly whilst allowing easy loading. Also known as caulking guns, most guns fit the most popular sized tubes of 310gm but some do hold tubes as large as 400gm. For the perfect application, screw the nozzle onto the tube, load it into the gun, then squeeze the trigger gently until the sealant appears in the nozzle. Put the nozzle against the job on the angle the nozzle is cut then lift the handle slightly and squeeze the trigger as moving the gun in a smooth line. Moving too quickly will stretch the bead and applying it too smoothly it will distort.