Sealant guns

The sealant gun is a device, which significantly simplifies application of the product. It helps to dose the product precisely, providing its even spreading and makes it easy to treat hard-to-reach elements.

Types of caulk guns

By construction:

• Skeleton. These are tools of the open type, which consist of a frame with rigid ribs and rod. The units are used with standard tubes of 310 ml volume. These items are inexpensive and perfectly suitable for simple sealing works.
• Half-barrel. These are simple devices, which differ from the skeleton ones by presence of a tube holder. The compound is applied more precisely thanks to such construction.
• Barrel. These are devices which have cylinder shape for material placing. Such items can be used for the sealants packed in tubes, as well as bulk materials of up to 600 ml volume. These guns can be provided with special tips, allowing to adjust thickness of the applied compound.

By method of sealant supply:

• Manual. In such items the product is applied due to mechanical force.
• Air powered. The gun is provided with a special valve and supplies the sealant with the help of compressed air. Most of such devices are equipped with the pressure regulator, which allows to dose the mixture precisely.
• Battery-powered. These are efficient devices operating from the small motor. The mixture supply is performed automatically at single button press. Despite a high price, devices have the advantage of small weight, easiness of operation, and many of them have variable speed control. They are designed for use sealants in tubes, as well as in soft packs.

Construction

All sealant guns have similar design. Most of them have a piston, which presses out, stop lever, and button for adjustment of product supply and a button lock.

Tips on sealant gun use

Follow the gun manufacturer instruction. First of all, you will need to load the device. In case of work with the skeleton or half-barrel tool, you need to press the stop lever, pull out the rod to the end and insert the tube. For loading the barrel type unit, you need to unscrew the mixture supply nozzle, move out the rod with piston. After this, insert the tube or fill unpacked material, install the nozzle on the gun.

The operating principle of the units is the same: a loaded unit is directed to the area, which should be treated, pressed tightly and the button is pressed slowly. The tool should be held at 45° angle to the surface, so as to provide even line of application. The parts should be preliminary cleaned from any soiling. The cap should be put on the tube after repair is finished, and the gun – cleaned.

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