Air gun for sealant and its features

When carrying out construction and installation works, one of the most popular means is considered to be a sealant. It helps to reliably glue materials, seal joints, seal joints between structural elements. For ease of application, a pneumatic gun was created for the sealant, which evenly distributes the mixture on the working surface and reduces the labor costs for the process.

Content:

• Gun design and principle of operation
• Pistol Features
• Gun capacity
• Scope of application
• Advantages and disadvantages
• Criterias of choice
• Proper gun refueling
• Methodology of application and rules of operation
• Safety precautions
• Top brands

Gun design and principle of operation

Airgun for sealant - a construction tool designed for mechanized feeding of the composition to various surfaces. It is one of the varieties of glue guns and works due to the pressure of compressed air. The air flow is created by pulling the trigger, and it pushes the sealant out of the nozzle. In addition to acrylic, polyurethane and other means, a pneumatic gun can be used to work with mastics, liquid nails, and other construction compounds.

Air gun consists of the following parts:

• housing;
• spring for pushing the rod;
• pusher (piston);
• handle and lever;
• tip.

Some guns are suitable for working with rigid sealant tubes, others are only suitable for soft ones. There are devices that are suitable for all types of compositions, and after inserting the cartridge you just need to reinstall the piston. On sale there is a professional tool that acts thanks to the operation of a compressor that pumps air and moves the piston.

Pistol Features

Air guns belong to devices of the closed type. They are very convenient in practice, while being easy to manage. The sealant begins to be squeezed out of the tube as the master pulls the trigger. The tool comes out evenly, because the supply of the composition is carried out in a continuous mode.

Air guns are equipped with an airflow control system. They are very reliable, characterized by high speed. Most models are made of metal or durable plastic, so they do not break, they serve for many years.

Gun capacity

This indicator is characterized by the volume of the cylinder that is installed in the gun. Each tool can accommodate a different amount of sealant: such a design feature is provided by the manufacturer to exclude frequent refueling. Typically, cartridges with a volume of 500 ml to 1.5 liters are well suited.

Scope of application

The air gun is designed to seal joints, joints, joints of different parts in order to protect them from penetration or leakage of moisture. The tool also helps prevent contamination of the joints, smooths out surface defects that appear during poor-quality repair work. Pneumoguns are always available from professional construction crews, but are no less in demand in everyday life.

Advantages and disadvantages

The air gun copes with the application of sealant on any surface. The finished seam will be much smoother, more beautiful than the one that is done manually.The thickness of the seam is the same throughout. Other advantages of using a pneumatic gun are as follows:

• the ability to quickly change the sealing composition (if necessary);
• reducing the complexity of the process;
• tool strength, long service life and resistance to damage even when dropped from a height;
• cost-effectiveness of funds due to the presence of a regulatory system;
• low risk of marriage, errors during sealing;
• lack of noise, extraneous sounds at work;
• the ability to use even by beginners;
• suitability for all types of sealants.

There are few disadvantages of pneumoguns. If the device is powered from the network, then the possibilities of its use will be limited. Often, appliances are heavy, and with prolonged use, your hands may get tired. The cost of air guns is higher than conventional hand-held devices, but they serve an order of magnitude longer and more productive.

Criterias of choice

When selecting a device, you need to decide for what particular actions it will be used and with what intensity. For example, for one-time work in everyday life, it is worth considering the option of an inexpensive device, and there is no point in spending money on a professional apparatus with a compressor.

Other parameters to pay attention to:

1. Convenience. During application, the master should not feel discomfort, hold the air gun easily, the brush must move freely.
2. Trigger. Be sure to evaluate the function of this part - ideally, the hook moves without tension, smoothly, without much effort. It is better if it is made of molded aluminum.
3. Quality and durability of the case. There should be no mechanical damage, cracks, chips, nicks or scratches on the gun. Well, if the base is made of metal. All levers must also be intact, move smoothly.
4. Capacity volume. For a large amount of work, it is worth choosing devices that use large cartridges and tubes.

To buy a pneumatic gun, you should visit a specialized store where there are products of famous brands: there is practically no risk of running into a fake. A good tool has different controls, limiters that facilitate the task of the user. Really worthwhile products are not sold at big discounts, the price of them always remains high. Budget options cost 3–10 thousand rubles, while professional ones cost up to 35 thousand rubles.

Proper gun refueling

To fill the pneumatic gun with sealant, you must take the following steps:

1. Pick up the tube, open it, put on the cap and cut off its tip at an angle of 45 degrees (the width of the cut must be correlated with the expected thickness of the seam).
2. If a plastic cartridge is used instead of a tube, punch a hole in it with an awl, screwdriver, acting very carefully.
3. Secure the container in the gun by screwing it on.
4. Unscrew the plug from the soft tube, put it into the body, put on the applicator, and close the plug after completion of work.

During the sealing process, the composition should not be allowed to fall onto the surface of the gun. If this happens, stains must be removed with a solvent or mechanically immediately. The stained tip must also be wiped immediately after installation.

Some professional pistols are suitable for bulk sealants. They need to be filled with a mixture: draw it into a special cavity, and only then proceed with application. The exact procedure for filling the container with sealant is always described in the instructions.

Methodology of application and rules of operation

Before applying the sealant, the bases must be carefully prepared: clean from dust, dirt, rust, old paintwork.Then the metal, wood, plastered surfaces must be primed and allowed to dry. Further it is possible to carry out sealing. To the mass came out evenly, the tool is kept at the same distance from the surface of the product. Work tips are as follows:

• no need to rush, otherwise there may be voids, poorly filled sections;
• so that the seam is even more beautiful, it is worth pasting the edges with masking tape, and then remove it, without waiting for the sealant to dry;
• after the seam is completed, its top must be gently smoothed with a paint brush or a spatula dipped in water.

Safety precautions

To work with a pneumatic gun does not bring trouble, you must always follow safety measures:

• do not modify the design of the gun;
• Do not increase the load on the device, for example, adjusting the length of the lever;
• Do not apply sealant to surfaces under voltage;
• to prevent the storage of the gun in direct sunlight, to prevent its heating;
• exclude the ingress of aggressive substances on the housing or other components of the device.

Top brands

If you decide to purchase a pneumatic gun, you should give preference to a popular model from a well-known manufacturer. Professionals trust the brands Stayer, Wilton, Workman, Metabo, Makita. They are characterized by high reliability, smooth flow of the composition, the ability to adjust the strength of the air flow. Such devices rarely break, serve faithfully for many years and can seriously accelerate and facilitate the process of repair and construction.