Sealant gun

Nowadays, there are a huge number of the most diverse tools that are used in the construction and repair process. Among such tools is a sealant gun. Sealant is a special glue that is not afraid of water and other negative effects. However, the sealant is not sold in a regular tube, like other types of adhesives. In order for them to work, they need a special gun, into which a cartridge with sealant is inserted.

Guns for sealants are different. And each of them has its advantages and disadvantages. But first things first.

About design

First we’ll talk in more detail about what a sealant gun is all about. To begin with, they call him a pistol because of the resemblance to this type of firearm. The tool has a handle, a mechanism with a trigger and a guide, which can be compared with the barrel of a firearm.

As for consumables, in most cases they use silicone sealants. They are packed in special tubes or containers that have the shape of a cylinder. The bottom of such tanks is always movable, that is, it can move along the tube body. A variety of nozzles can be planted on the tip of the tube, with which the adhesive can be given the desired shape.

The bottom of the tube is set in motion due to the fact that the pistol has a piston associated with the trigger mechanism. When the user pulls the trigger, the piston moves the bottom, squeezing the adhesive mixture through the nozzle. It is noteworthy that the sealant packaging is universal in terms of shape and size. Therefore, they are suitable for any pistol, regardless of its brand.

About Species

Now we turn to the consideration of types of guns for sealants. Models of such an instrument are very diverse. In view of this, it can be quite difficult for customers to choose a particular model the first time. In fact, all that the user needs to know is that the guns for sealants are divided into two groups:

Let us consider in more detail each of these groups.

Professional pistols

Guns for sealants from this group are different, but two types are most in demand among professional builders:

Both types of professional tools have a high degree of performance. They are designed for a long period of work without interruptions. In most cases, such pistols are used in large-scale production. And their main feature is that they are intended not only for packaged sealants, but also bulk ones, which are sold in packages.

As for the principle of operation of a pneumatic tool, it is slightly different from the mechanical counterpart. The glue mixture in it is squeezed out due to air pressure, and not due to the physical impact of the user. In addition, pneumatic guns additionally have a pressure regulator, due to which you can adjust the air pressure, allowing you to evenly squeeze the required amount of adhesive into the seam.

If we talk about battery models, then they are the most expensive. Such tools are almost never used in domestic conditions. Moreover, the construction work, which is usually carried out in apartments and private houses, is insignificant. In this case, battery models can be adjusted and preset extrusion speed. Naturally, this allows to significantly improve the quality of work performed.

Purpose and principle of operation of the sealant gun

Many building compounds, for example, the same adhesive for ceramic tiles, are produced in plastic or cardboard cases made in the form of tubes.

For simple and uniform application of such compositions on the surface to be processed, sealant guns are used that are available on the market with several design options.

The tube itself, in fact, is a large syringe with a piston, but without a stem.

The last part is just part of a special tool.

Such a tool is called a pistol because of the similarity of form with the same type of weapon.

There is also a kind of trigger, by pressing on which the rod presses on the piston of the tube, thereby squeezing the applied composition from the opposite side.

The sealant gun can be applied with acrylic, silicone, liquid nails, a chemical anchor and many other compounds packaged in suitable tubes, or even not packaged at all.

Device and specifications

Structurally, the sealant gun consists of the following parts:

• The body (frame) into which the tube is inserted.
• Rod with piston - depending on the type of gun, it is hexagonal, smooth or toothed. Its purpose is to push the mass from the tube to its nose.
• The handle with the trigger, by pressing on which a portion of the sealant is extruded by the piston.
• Fuse for holding the piston from spontaneous reverse stroke and fixing it at a given level.

Also, various nozzles can be supplied with the tool, allowing you to set the characteristics of the applied seam.

So there are nozzles that make it convenient to simultaneously apply and level the material, for example, at the joints in the bathroom.

Material

In the manufacture of guns for sealant, depending on their type, they most often use durable plastic that is resistant to mechanical stress or steel coated with anti-corrosion paint.

They can also use tool steel, which includes chromium and vanadium or aluminum.

The latter is used in the production of only case models, regardless of the method of bringing their mechanism into action.

Rating of the best guns for sealant

Best mechanical sealant guns

Mechanical sealant guns are operated by push from the user. To do this, a rigid handle and rod are provided, squeezing the mounting mass with a piston. To start the mechanism, the master pulls the trigger. Such a tool can be professional or amateur, depending on the quality of the assembly.

FIT Profi 14256

The first place is occupied by goods from the brand manufacturer of the FIT tool. The handle of the gun is powder coated in black and for a long time resists corrosion. The trigger contains four ergonomic finger protrusions that provide a firm grip and prevent slipping. Users in the reviews note that the design is carefully adjusted and has no play, so the sealant always comes out with constant pressure. Such an inventory does not have backflow. The chamber is designed for refueling tubes and holds up to 600 ml of substance. If necessary, the model can be hung by a special hole.

The gun for feeding the sealant was included in the rating due to the closed design. The metal tube reliably hides the tube with liquid nails, preventing it from being accidentally damaged in a limited space. It is practical for work in car service or other difficult places. A still closed housing provides increased structural rigidity, so the piston always presses directly.

Features of guns for sealants

The gun for applying the sealant has an external resemblance to a firearm, its body has a piston system, a trigger device associated with it, a convenient handle and a guide. Sealant extrusion gun is most suitable for working with silicone and paste-like substance in tubes with a movable bottom of the body. The tube has a special tip that allows you to attach nozzles of various shapes to it for specific work and give the sealant a specific shape at the outlet of the tank.

Due to the fact that the sealant is available in standardized tubes, which are produced according to GOST, it is always easy to select the necessary tool according to the specified sizes. It is necessary to choose a suitable mounting gun for sealant in accordance with the characteristics of the type, the features of operation.

Types and characteristics of pistols

Silicone fluid sealant is a multifunctional compound. This substance can be applied by suture method or by spraying. The gun for spraying the sealant is not purchased separately, just a complete set of special nozzles is enough to evenly apply the composition to the prepared areas.

Depending on the design, all guns can be divided into three groups:

• Half-hull.

• Closed tubular.

Depending on the type of feed of the sealing compound, the guns can be divided into the following groups:

• Mechanical.

• Electric.

• Rechargeable.

The best gun for sealing joints, according to statistics from building supermarkets, is a pneumatic tool. It is convenient and easy to use, and therefore the best. The substance is supplied due to the effect of compressed air, and the gun is also equipped with a feed regulator. The body of such a gun is usually made of metal and is suitable for the use of tubes of any kind.

Also, pneumatic guns can be used for non-packaged sealant, as some varieties have a specially designed body for refueling a mixture created in-house. Air guns are both a professional tool and suitable for ordinary craftsmen for everyday use.

Cordless gun for sealant is used very rarely in everyday life, mainly suitable for professionals. It has a fairly high price, is not as simple and convenient to use as a conventional mechanical model. On this gun, you can pre-configure options, adjust the strength of the mixture, use both finished tubes and bulk, self-diluted sealant to work. Complete with battery varieties are usually several nozzles with different diameters for feeding the sealant, or they can be purchased separately.

The electric variety, like the battery one, can be attributed to the automatic group of guns for sealants. However, electrical models are intended for professional use only. Finding and acquiring them is a bit more difficult than other models. Such varieties are used for work in the open air, with large volumes of substance and areas.

A skeleton gun is one of the most commonly used varieties of construction tools. It works exclusively with ready-made containers with sealant, the supply of which is due to the pressure of the rod. Skeleton guns for sealant are made of steel, which increases the tool life. You can find simple and reinforced pistols, which are about the same in operation, have body fins, handles, pistons. However, the reinforced models have thicker steel parts in the structure. In working with such a tool, you need to make a little more effort compared to using the usual variety. Often, skeletal pistols are purchased for the purpose of a single operation.

The semi-hull gun for sealant is, as the name implies, the most simplified design. Therefore, they are called weapons, respectively. It has the lowest price, the shortest service life and very quickly loses structural integrity - the body is skewed, the tube with silicone is not fixed well, difficulties arise when the handle is pressed and the stem moves.

There is a cylindrical model of the gun, which is considered one of the most convenient varieties. It has a higher price and longer service life, allows you to work with sealants in tubes and bulk material, has a smooth ride, has several nozzles in the kit.

Manufacturers and models

According to the same statistics of construction stores, foreign brands of sealant guns such as Kraftool, Wolfcraft and Stayer are very popular. In particular, these are German manufacturers who guarantee ease of use, quality, reliability and durability of their tools.

Sealant guns from the Kraftool brand are distinguished by constant innovation, improved devices and thoughtful form. Kraftool sealant guns have a full line of different varieties of patented designs. Working with such tools is as simple and easy as possible. You do not need to use significant force to return the handle to its original position. Additionally, some Kraftool models have plastic panels that protect the device from dust. Therefore, Kraftool sealant guns occupy the top positions in the ratings, excellently serve professional craftsmen.

Warcraft maker has also gained popularity among consumers. Its mechanical and electronic products are especially in demand, which are distinguished by their ergonomic shape, the use of automated drip stop systems, and the ease of changing a cartridge.

The Stayer brand produces tools for professionals that comply with all the highest building codes. The most popular model will report the pro gun for the sealant Stayer Profi.

Also, excellent quality and variety of models can be found at Japanese manufacturers. For example, the Makita brand, which produces professional cordless pistols, as well as other varieties of models, deserves attention. They can be used for work with capacities of 300 and 600 ml, and also with bulk substance. You can adjust the feed rate of the composition on the device. The peculiarities of Japanese pistols are that they are light in weight, compact in size, and have high productivity.

Another world manufacturer from Liechtenstein, producing pistols under the Hilti brand, also guarantees high quality and good performance. In stock you can find a huge variety of products for both amateurs and professionals in any price range. Tools are characterized by high reliability, durability, resistance to mechanical stress, as well as the duration of operation.

The construction materials market was not without the Chinese brand Hammer, which perfectly combines price and quality in its pistols. Subject to operating requirements, the manufacturer guarantees the duration of use of goods characterized by a high level of ergonomics and quality of materials.

Sparta sealant gun is also manufactured by a Chinese manufacturer. The instrument is guaranteed for up to 1 year, but they are mainly designed for amateur use. The design of such pistols has additional reinforcements in the form of stiffeners, which ensures the stability of the tube during operation and prevents its distortions. This Chinese option is also available to a wide range of customers who want to save on price but not quality.

The gun for the Zubr sealant from a domestic producer has been in stable demand for many years.The company makes high-quality tools from chrome-plated materials of high strength. The models are ergonomic, reliable, have a long service life and a guarantee of up to 5 years. In the assortment you can find absolutely any kind of sealant guns, from skeletal types for amateurs to professional models. A popular and recommended variety is the "Bison Expert" model for professionals, made of high quality metal.

The Fit 14256 sealant gun has a sturdy steel and aluminum casing. The mechanical tool is suitable for the operation of cylinders with a volume of up to 600 ml with glue or sealant, and has a closed housing design. The manufacturer usually gives a guarantee on their tools up to 1 year. Models differ in light weight, which does not create additional load during operation.

An outstanding model for spraying sealant is the Sumake ST gun. Also available from this Chinese manufacturer there are other high-quality aluminum models, characterized by a long service life.

In fact, you can find good varieties of pistols, both from domestic and foreign manufacturers. For example, Russian master pistols for sealants Master are in no way inferior in quality to their German counterparts, they can only cost several times less.

In the video: How to use a sealant gun

Selection tips

In order to choose the best tool for the job, you need to use such relevant tips and tricks:

• Decide on the type and amount of work. If this is a one-time repair, you can choose an inexpensive skeletal type gun. It’s not necessary to choose well-known, established and expensive brands for this. You can choose any option that fits comfortably in your hand.
• For more voluminous work with large areas or with a significant amount of sealant, it is worth paying attention to the pneumatic option. It has a long service life and is easy to use.
• In order to do the job as accurately as possible, save time, use the battery option. However, it is still more suitable for professional purposes and reusable use.
• Regardless of which gun is chosen - amateur or professional, you should look for a model that will be conveniently located in the palm of your hand. If a person experiences unnecessary muscle efforts when pressing the handle, then the hand will quickly become tired, and thereby productivity will decrease, the quality of work will be accompanied by the appearance of inaccuracies.
• When purchasing a gun at a time from an unknown or inexpensive brand, it is necessary to carefully study its design, check for rivets, as well as the quality of their fastening. There should not be any backlash in the instrument.
• The most optimal version is the pistol, in which the handle is made of aluminum. This provides a particularly strong device. If the main parts and fasteners in the tool are made of plastic, then such a purchase should be abandoned.
• When choosing a closed type pistol, it is necessary to check its tightness in advance.

It is best to go in search of a suitable tool in specialized construction stores, where specialists will give professional and qualified advice, will allow you to get acquainted with each selected variety in detail.

How to use a sealant gun: instructions for use and care

Construction gun for sealant is simple device. It is important not only to choose the right variety, you need to learn to work with it. You should be responsible and attentive to the preparation for work and the process itself. Work on the instructions includes the following steps:

• First you need to install the feed rod for the sealant or cut off the nozzle of the tube at a certain angle, which is recommended by the manufacturer. You can use the included nozzles. If these are spray nozzles, then the gun will further spray the material on the surface. Typical nozzles have a diameter of 11 and 7 mm, but professional varieties support other parameters.
• In place for the sealing mixture, it is necessary to place a container with the substance. To make the mixture more flexible during operation, the tool first warms up a little.
• To manage to squeeze out the sealant evenly and accurately, you can practice on inconspicuous areas, get used to the tool.
• In those cases, if we use a gun with silicone of a battery or pneumatic type, it is necessary to set the mixture supply parameters on the device in advance.
• Apply sealant to the work surface smoothly and evenly, checking if there is enough substance to fully work out the selected area. If it is work with seams, the sealant should give in evenly without interruptions until the joint is completely filled.
• After completing pressing the handle of the gun, it is necessary to remove any residual composition or excess from the working surface. After the sealant hardens, it will be much more difficult to do.
• If the substance still remains in the tube, you can store the sealant in an upright position with the nose up with the gun until the next use. If the tube is empty, then it is necessary to remove it, and clean the instrument from the remnants of the substance with a solvent.

The process of filling the syringe gun will be slightly different:

• To begin with, you should make a small hole in the cartridge or, in the case of the packaged variety, cut off the corner of the package so that the substance can leave it without difficulty.
• After this, you need to open a special syringe in the gun body, where to move the prepared composition.
• Before laying, remove the stem from the gun.

It is important for masters not only to learn how to use the tool, handle it, prepare it for work, but also to take care of it after repair. This will help extend its operation without breakdowns and difficulties. You must adhere to this instruction:

• After each operation, it is necessary to clean the gun of the compositions remaining on the body. Also clean nozzles thoroughly. If the material has time to harden from the inside, this may cause the tool to break and become unusable.
• If the work with the sealant of the polyurethane composition has not been completed, then to restore the operability of the tool, it is necessary to remove the nozzle of the tube with the dried substance and replace it with another nozzle.
• To eliminate the remains of dried sealant, you can use the mechanical method, as well as use special solvents. If the work was carried out with a bituminous composition, you need to use white spirit.
• If you can’t remove the excessively dried tube from the gun body yourself, you can contact a repair shop for help.
• A significant level of humidity, as well as direct exposure to ultraviolet light, reduces the curing speed of the sealant, which negatively affects the final result of the work.
• If you need to tamp with your hand or align the sealant, moisten your fingers first with water so that the substance does not stick to them.
• So far, the hermetic composition has not completely had time to harden; its remains can be eliminated with soapy water from the surface of other materials.

Each novice master can quickly master such a building tool as a sealant gun. Despite the outwardly simplified design, it is necessary to treat working with this tool very responsibly and accurately. Previously, you should familiarize yourself with the characteristics of all existing varieties in order to choose the optimal type for work. You need to work with it, be sure to follow the instructions, and do not forget to carefully care for the tool.

Household tools

As for pistols for sealant household type, they are of several types. It:

• skeletal
• reinforced skeletal,
• half-shell
• with a cylindrical body.

Skeletal models are the best option for those cases when the tool will be used to perform one-time work. Such pistols have an acceptable margin of safety and have an acceptable cost. Due to the fact that in the design of the model there are rigid ribs that hold the tube with sealant well. The piston rod of a skeleton pistol moves quite smoothly, without jerking and significant distortions. Such a tool is made of steel having a thickness of 1.5 millimeters. For the manufacture of the handle using thicker steel, and for the rod using a hexagonal steel bar with a cross section of 6 millimeters.

As for the reinforced skeletal pistol, it is similar to the first type. The main difference is that more durable materials are used for the manufacture. Due to this, the reliability and durability of the tool increases. The body of the gun is made of steel with a thickness of 2 millimeters. 3 mm thick steel is used for the handle. The stock is also made more powerful - it has a cross section of 8 millimeters.

A half-hull tool is the cheapest type among sealant guns. It has the shortest service life, so it is already quite difficult to use it after several tubes of sealant. The design of the gun is such that the tube with sealant is constantly warped. Therefore, the stock is very difficult to extrude. For manufacturing, steel is used with a thickness of 1 mm, so if such a tool is accidentally dropped, its body may completely deteriorate or break. At the same time, the thickness of the stem is also quite small.

When considering a pistol that has a cylindrical body, it can be noted that among household models it is the most popular. Such a tool is, of course, more expensive than all previous household models, but the user gets the opportunity to use not only cartridges, but also bulk sealants. The design of the gun is such that it is very convenient to use it in the process.

A cylinder sealant gun does not skew the tube with adhesive. Yes, and his stroke is smoother. At the same time, cylindrical pistols in the configuration also have a set of various nozzles. Therefore, if the user plans to perform work with hermetic adhesives quite often, then he should buy a cylindrical tool. It has a long service life and increased strength.

Dimensions and Weight

The overwhelming majority of sealant guns are made to the appropriate sizes of standard tubes with a capacity of 310 and 600 ml.

The length of the simplest tool is approximately 220 mm and 440 mm, respectively.

In principle, the dimensions of the gun do not play a special role and are marked according to the standards of the cartridges for which they are intended to work.

The instrument weighs an average of 250 g.

Additional functions

For the convenience of performing work, a modern tool can be equipped with various additional functions, including:

• Sealant area highlighting.
• Trigger lock for easy continuous operation.
• Adjustment of the speed of applying sealant, which improves the accuracy of work
• Leakage protection.

Among other things, to the gun for sealant you can additionally purchase all kinds of nozzles with light, a cleaning needle, as well as a punch that allows you to remove the frozen mixture.

The nozzles themselves, by the way, can have a very different shape, allowing the sealant to be applied to hard-to-reach places.

Skeletal

It is used for single or rare work.

The body is made of 1.5 mm steel, and the hexagonal rod has a cross section of 6 mm.

The presence of stiffeners ensures a smooth piston stroke, while reliably holding the tube with sealant.

The production uses steel and plastic.

Structurally, such a tool looks like two frames connected by a ring, the stem is hexagonal, smooth and toothed.

The average price is 200 - 400 rubles, there are models for 120 rubles.

Armero A251 / 006

In second place the rating of mechanical pistols is a tool that holds tubes up to 310 ml. The device is made in a skeletal structure having two metal strips to maintain shape. The handle and the trigger are cast from aluminum and equipped with stops so that the hands of the master do not slide off the sweat. A lever is provided at the rear end to relieve pressure and adjust the depth of the piston. The pusher mechanism works with a gear ratio of 18: 1. A special loop is provided for hanging. The users in the reviews like that a powerful spring brings the stem back a little after each push - this prevents the creation of excessive pressure.

The gun is rated as both light and durable. The product belongs to the category of reinforced - its trigger is attached to the body with two powerful rivets, so that the most movable part lasts longer. The holder frame is welded by contact welding and ensures the preservation of the correct geometry in spite of falls and everyday use. In this case, the inventory weighs about 700 g.

Disadvantages

• heavier product weight
• Only suitable for special capsules with sealant.

Armero A251 / 006

In second place the rating of mechanical pistols is a tool that holds tubes up to 310 ml. The device is made in a skeletal structure having two metal strips to maintain shape. The handle and the trigger are cast from aluminum and equipped with stops so that the hands of the master do not slide off the sweat. A lever is provided at the rear end to relieve pressure and adjust the depth of the piston. The pusher mechanism works with a gear ratio of 18: 1. A special loop is provided for hanging. The users in the reviews like that a powerful spring brings the stem back a little after each push - this prevents the creation of excessive pressure.

The gun is rated as both light and durable. The product belongs to the category of reinforced - its trigger is attached to the body with two powerful rivets, so that the most movable part lasts longer. The holder frame is welded by contact welding and ensures the preservation of the correct geometry in spite of falls and everyday use. In this case, the inventory weighs about 700 g.

Advantages

• the pusher rod is provided with an anti-corrosion coating,
• lightweight aluminum alloy handle and trigger design,
• the piston presses with 4500N,
• comfortable handle with stops.

Disadvantages

• high price,
• coarse trigger lever for pulling the rod.

FIT Profi 14246

The third place was taken by a mechanical-type pistol made in a semi-closed configuration. The main body consists of tool steel and aluminum. Outside the product is sheathed in shockproof plastic, adding volume to the device. This increases the comfort of girth and retention. The receiving part is designed for tubes with sealant, a volume of 310 ml. Owners in reviews like the anti-drip system, which prevents the sealant from leaking in the opposite direction.

The product was rated the best because of its counterweight. This is the original design of the gun, which is equipped with a weighting pad at the back of the handle. This solution provides a balance between the tube of 300 g and contributes to a lesser strain on the hand. We recommend that you pay attention to the inventory for those who have to apply sealant many tubes every day without the ability to support the nozzle with the second hand.

STAYER Professional 0673-60

In fourth place is a mechanical pistol from a German brand.The model copies in execution the Canadian instrument leading in this rating category. The equipment also holds 600 ml and is designed for industrial capsules with an internal arrangement. The closed design will not allow the rod to bend or push to the side, reducing productivity. To easily free your hands, a mounting loop is provided. Pressure relief is carried out by a lever at the end of the gun. The device is both durable and lightweight due to its aluminum housing.

According to our experts, the gun deserves a place in the ranking due to the tightness of the block with sealant. A closed container holds industrial capsules with a substance and completely isolates the hands of the master from the spreading agent. This allows you to keep even work clothes clean and not annoying with drips.

Armero A251 / 008

Continues our rating of the best mechanical pistol models with a closed body type. In it, you can lay special capsules with sealant up to 600 ml. It is convenient to adjust the length of the rod using the rear nickle. To relieve pressure, just gently press the lever with your thumb. The owners in the reviews pay attention to the particularly thin nozzle of the gun, which facilitates the supply of the substance to the bottlenecks. The case for cleaning both the front and the back is disassembled, so care for the tool is not difficult. The device retains an attractive appearance for a long time, since it is protected by high-quality spraying.

In our opinion, the gun deserves a place in the ranking due to the reduced gear ratio of 12: 1. This contributes to the delicate flow of semi-liquid material so that excess does not leak onto the product. When the trigger is released, no residual pressure remains in the container, therefore the supply of sealant immediately ceases.

BISON Professional 06633-31

The pistol from the domestic manufacturer ZUBR closes the rating category. This is another model from the category of reinforced. The case is distinguished by its closed form, but the product is much shorter than analogs and holds up to 310 ml of sealant. In order to move the stem easily, it was subjected to additional grinding, and to protect silicone and other substances from moisture, they were coated with zinc. The gun can be suspended both by the mounting hole and by the hook of the main axis. Thanks to the integral design, the tool holds its shape perfectly despite everyday stresses.

A 300 mm case length is ideal for installing both industrial capsules and standard cartridges. The piston diameter is suitable for both types of containers with consumables, so nothing needs to be trimmed or customized. This is a universal gun in our rating, to which it is not difficult to find a sealant. Owners note in the reviews a fairly light weight of the model at 550 g, which is optimal for sealing gaps at the top on outstretched arms when installing windows or doors.

Makita CG100DZA

The first place in the category of cordless pistols was taken by the Japanese model. The handle of the gun is rubberized and does not slip even in the heat. To adjust the stem depth, a convenient T-handle at the back is provided. Semi-closed type of housing ensures the preservation of rigidity and speed of installation of the cartridge. Feed adjustment is carried out in the range from 0 to 28 mm per second of the pusher movement. The battery is not included, but the gun provides protection against overheating and deep discharge. The feed force from the motor is up to 5000N. Owners in reviews like the presence of a flashlight to highlight the place of supply of the sealant.

We put the gun in the rating, since the battery model holds 800 ml tubes. This is the largest indicator in the category. This design allows you to work for a long time without interruption and close up large areas with seams. The pusher speed controller helps to adjust the desired flow rate, for which they use a wheel with numbers on the end.

Ryobi ONE + CCG1801MHG

The second place in the rating belongs to the more affordable model from another Japanese manufacturer. The gun is inferior to the rating leader in the feed rate of the sealant (5.5 mm per second versus 28 mm), but it costs three times cheaper. Customers in the reviews like that the gun has a trigger lock - this protects against accidental pressing and squeezing the substance. To select the optimal speed, you can use the crescent-shaped switch on the left side. The rubber grip on the handle contributes to comfortable hold. To squeeze out the sealant, the apparatus applies a force of 225 kg, therefore it can also push out a thickened substance.

We put the gun in the rating of the best battery models, since the electric motor is energy efficient. With a 5.0 Ah battery, one charge is enough to use 200 tubes with sealant. We recommend that you look at the model for those who care about the period of autonomy and there is no frequent opportunity to recharge the device.

Half housing (half open)

The cheapest option, as it is not designed for continuous operation.

In production, steel is used from a thickness of 1 mm.

The name "half-hull" pistol received because of its shape in the form of a half cylinder.

The design, which does not have any stiffeners, leads to a distortion of the stroke of the rod, which complicates its movement.

The cost of such a gun is only from 120 - 150 rubles.

Steel is used in production, the body is a cavity into which the tube is inserted, the stem can be serrated, smooth or hexagonal.

Cylindrical

The tool is the most versatile, as it allows the sealant to be applied not only in tubes, but also in sausage-type packaging or without packaging at all.

The closed cylinder of the body here can act as a holder for the tube, or directly by the tube itself, into which the sealant is simply refilled.

In the manufacturing process, plastic or aluminum is most often used; the stem is always smooth.

Such models are called a closed type sealant gun.

Price - at least 500 rubles.

By the type of supply of sealing means, the tool is:

Rechargeable

Suitable for performing work of various sizes, including intensive use at construction sites.

Outwardly, it often looks like a hybrid of a cordless screwdriver and an ordinary closed or half-open pistol.

The battery gun for tubes is good in that it allows you to smoothly adjust the feed rate of the sealing substance, thereby achieving a high final quality.

For this reason, the tool is often called a battery dispenser.

Such models will cost about 4-5 thousand rubles for the cheapest options, and 20-30 thousand for professional equipment.

Pneumatic

It is used to carry out large volumes of work, it applies the sealant quickly, conveniently and evenly.

Such a tool is connected to a suitable pneumatic line, for example, an air compressor, and when using a special muffler it is almost completely silent.

Another advantage of such a gun for silicone is its low weight, which in the professional environment is valued no less than performance.

The cost is approximately 3.5 thousand rubles.

The sealant syringe gun may have a fixed or rotatable housing (excluding options with a closed housing).

This design allows the part holding the tube to rotate relative to the handle, which increases the convenience of applying sealant when working at different angles.

In addition, there are so-called counterweight models, where the handle is offset closer to the center of the entire structure, this makes it possible to evenly distribute the load on the arm.

Which sealant gun to choose?

To perform periodic simple tasks, such as processing joints in the bathroom or during restoration, for example, furniture, an ordinary household gun with a mechanical feed of sealing material is suitable.

When choosing such a model, you should pay attention to the possibility of its work with small packages of sealant.

Support of a 310 mm tube, as the most common and in demand, is desirable.

So that an inexpensive gun purchased for a house does not fail after several operations, it is better to look towards reinforced structures with a steel thickness of at least 2 mm.

It is important to remember that without using a gun, applying a neat seam will not work, because you will have to buy this tool anyway.

If you need to perform any one-time work, you can get by with the cheapest half-shell “Chinese”, which is enough for a maximum of 3 refueling.

The choice of a pistol for professional activities is based primarily on the following criteria:

• Convenience of transferring the instrument to a specific mode of operation, for example, from tubes to bags.
• Life expectancy, i.e. reliability.
• Weight, which plays an important role in intensive work.
• Clamping pressure.
• Warranty service.

Of course, professionals try to buy mostly rechargeable models, since they have high power, do not require physical effort when using.

Such options are able to work on a single charge for an average of 3 hours, and weigh about 2 - 3 kg, depending on the model.

If you plan to work with bulk sealant, attention should be paid to pneumatic self-priming guns.

What you need to know about sealant guns?

As already mentioned, depending on the type of gun it can be used to apply only packaged, or optionally packaged sealant.

The difference between these two concepts lies in the container:

1. Packaged sealant is delivered in a rigid plastic or foil (type “sausage”) tube.
2. Bulk sealant is most often sold in buckets, and therefore, for applying it with a suitable gun, you will additionally have to buy special plungers and a valve cover.

After applying the sealant, and immediately, it is important to clear all parts of the gun from its residues, since otherwise the mass freezes and in some situations it will simply not work out with improvised means.

Sealant Gun Manufacturers

Among foreign manufacturers, FIT, TOUA, SANTOOL, Inforce, Ryobi are popular.

The latter make high-quality cordless tools, not excluding guns for sealant.

Here, Makita with Metabo should also be noted.

As for domestic manufacturers, the leaders are COURSE, Whirlwind, Cobalt and Cedar.