When repairing in an apartment or office, the use of sealant is often required. This composition should be applied evenly without excess and voids - only then the quality of the seal will be at a really high level. For ease of application, reduce consumption and increase efficiency, professionals use a cordless gun for sealant - a special device that runs on electricity.
- Principle of work and features
- Advantages and disadvantages
- Criterias of choice
- Proper use
- Precautionary measures
- Gun manufacturers
Principle of work and features
An electric gun is a type of construction tool designed to facilitate and accelerate the performance of sealing joints. It works on batteries that consume a minimum of electricity when recharging. Mandatory components of the device are the body and the piston rod: the latter is necessary to actually squeeze the composition onto a flat base. The sealant from the tube inserted into the gun begins to be fed through the nozzle by pulling the trigger.
Battery devices are very convenient to use. For pressing, no special physical force is required; before work, the device does not need to be configured. Many of them have a power regulator, so the speed of the sealant can be set as desired. More expensive devices are equipped with a set of nozzles, thanks to which it is possible to change the shape of the seam and choose its suitable diameter. Some guns work only with solid cartridges, others insert soft packs such as “sausages” and even apply sealant from buckets, cans.
Advantages and disadvantages
The gun for the sealant of the battery type has a lot of advantages, so it is very popular among users:
- high power
- high speed of work;
- facilitation of the task of the master;
- sealant consumption reduction;
- accuracy of seams;
- a wide variety of models - by function and price;
- mobility due to the presence of a battery, the ability to use in any conditions;
- drawing long seams due to continuous operation;
- lack of drips when applying sealant.
to contents ↑The disadvantages of such devices are few. Most often they are used by professionals, because their price can not be called budget. Mechanical and pneumatic models are much cheaper. In addition, some multifunctional devices are heavy (up to 2.5 kg), and you will have to hold them with both hands, and without sufficient dexterity you can quickly get tired.
Criterias of choice
If you intend to use the device for domestic purposes, it is better to buy one that is suitable for sealants in cartridges of 280-310 ml. Larger sealant devices are professional and more suitable for a significant amount of work. For two-component compositions, special guns with mixing nozzles are sold.
Other aspects of battery choice are:
- Body. Devices with an aluminum casing are used to install tubes, with steel - suitable for durable cartridges.
- Weight, comfortable operation. Before buying, you need to take the tool in your hand, check whether it will be convenient to use it.
- Integrity. The gun must not have chips, cracks, or other defects.
Proper use
Before working with sealant, the surface must be treated - remove dust, dirt, stains of grease, oils, old paintwork. If this is not done, the adhesion between the parts will be poor. The place of the future seam should be degreased and completely dried.
Further, the procedure is as follows:
- prepare the tube - cut the nozzle at an angle of 45 degrees (the cut diameter must be larger than the thickness of the slit to overlap it), it is not recommended to pierce the sealant - this provokes an increase in the resistance of the product and a decrease in work efficiency;
- install the tube or cartridge into the battery gun: first loosen the fixing nut, take the rod all the way to the end, then insert the container with sealant and fix it;
- turn on the device and, pressing the trigger, fill the seams with the composition;
- smooth the seams with a spatula moistened with water;
- remove all excess sealant from the gun and surfaces until it has hardened (use solvent to clean the gun).
Precautionary measures
It is not necessary to allow direct contact of the sealant with the skin of the hands - work should only be done with gloves. It is better to protect the eyes with glasses, and put on old clothes or a robe to avoid damage to things. If there are solvents in the sealant, work only with good ventilation (extractor hood, open window).
Gun manufacturers
There are several brands of devices in stores that are considered quality and appreciated by professionals. Even with a breakdown, there will be no big problems: most large companies have their own service centers where the gun will probably be repaired. Reliable devices of the following brands are considered:
- Skil
- Makita;
- Bosch;
- Igun.
Of the inexpensive Russian brands, Zubr and Caliber are respected. They offer a large selection of closed-type devices that can work with cartridges as well as with weighed sealant.
A cordless pistol of proven quality will become an assistant to craftsmen and those who are engaged in home repairs at the household level. It costs more than any manual model, but it lasts longer, is much more convenient to use, so you won’t have to regret it!
