Choosing a gun for sealant

Assembly sealant is widely used in the construction, auto industry, in the field of glass production and the domestic area for repairing a variety of items. For its application requires a special tool. Let's consider what is the peculiarity of the assembly gun, and how to choose it correctly.

A well-known similarity of this device with a firearm determined its name - a pistol. The tool has a handle, a trigger device connected to the piston system, and a guide.

The main expendable composition for the product in question are silicone sealantsPacked in tubes with a movable bottom in the case. The tip of the tube allows you to attach special nozzles to it, forming the necessary form of sealant at the outlet.

There are many models of pistols, so the question of choosing a particular model is relevant.

Silicone adhesive sealant is an effective and multifunctional substance. With the help of a pistol, a sealant is applied both in a suture method and by spraying using a special nozzle. In the second case, with the help of a sprayed composition, for example, evenly cover large areas of car body elements after welding and priming works.

Devices (pistols), designed for applying sealants on a variety of surfaces, are divided into amateur and professional types. The first on the basis of special structural elements of the body are divided into several types and are executed, as a rule, in the manual version.

Scope of application - significant production areas.

Their main feature is the ability to work with compositions placed not only in tubes, but also with bulk material sold in bags.

In pneumatic models, the sealant is forced out by squeezing air under pressure, which reduces the degree of fatigue of the worker’s hands. In addition, for the most part, these tools have special pressure regulators, which ensures a uniform and metered supply of sealant to the surface being treated. Such guns are also used for sealants packed in sausage-type casings (with a volume of 600 ml).

Cordless guns are more expensive and are rarely used in everyday life, where the treatment of seams is usually one-time. Select this type for one-time work is not entirely justified. The product has the ability to customize the sealant feed rate, which has a positive effect on the quality of work and performance. It is used for unpackaged packaging options consumable.

Amateur pistols are divided into four types:

• skeletal;
• enhanced skeletal;
• semi-body;
• cylindrical.

The first one is intended mostly for one-time sealing. Stronger and slightly more expensive than a semi-corpus model, the skeleton pistol is equipped with stiffeners, so it holds the tube more securely, and the piston mechanism functions smoothly and without distortions.The material is 1.5 mm thick steel, the rod is made of steel bar with a cross section of 6 mm.

There is also a reinforced version of the skeleton pistol, characterized by higher strength properties due to an increase in the thickness of the case steel up to 2 mm, the handle up to 3 mm, the stem section up to 8 mm.

Half-body gun - the cheapest version of the device of all, represented in the trade, since it has the shortest service life, and after working with several packages of sealant it is not possible to use it - the tube with a sealant begins to warp and the rod is hard to walk. The body is brittle, made of steel 1 mm thick, the diameter of the rod - 6 mm.

A pistol with a cylindrical body, perhaps one of the most successful device options, although more expensive, will last a long time. In addition, it allows the use of non-packaged sealants. An easy-to-use device with a smooth and reliable stroke, comes complete with several nozzles.

In addition, there are also pistols for two-component type sealants, designed to work with two-component compositions of high viscosity, having special nozzles.

According to the review, according to rating indicators, the top lines, as a rule, are occupied by German manufacturers. Among them, according to the parameters - quality, reliability and ease of use - there are three companies: Kraftool, Wolfcraft and Stayer.

Continuous use of innovation, traditional German quality and reasonableness are typical for Kraftool, producing a line of almost all varieties of pistols. For example, the brand Kraftool Super-Max is durable and unique. The patented design allows, without applying force, to return the piston to its original position. In addition, the model is equipped with special plastic panels that protect the structure from dust. An excellent example of a solution for professional devices.

No less popular among consumers and the brand Wolfcraft. Mechanical and electronic products of the company, characterized by ergonomics, the presence of automated drop stop systems in models and the convenience of replacing cartridges, are constantly in steady demand.

Firm Stayer specializes in products for professionals. An extensive range and high quality workmanship meets the highest building codes.

Many professionals give their preference to the tools from the brand Makita (Japan). For example, a professional battery pistol (for DCG180RHE), is structurally adapted for work with cartridges with a capacity of 300 or 600 ml and non-packaged materials. There are feed rate adjustments and an anti-drip device. The gun is lightweight, compact and efficient.

High-quality devices are sold under the brand Hilti (Liechtenstein), which is equally famous on the market. The company produces an extensive range of products at the amateur and professional levels.

Devices from the Chinese company Hammer attract the attention of builders with the best combination in terms of price and quality. In the manufacture of the company and its products are distinguished by the use of high-quality starting material, a high level of ergonomics and a long service life with proper use of products.

Chinese devices from the company Sparta with a warranty period of up to 1 year cover the amateur line. Structurally, the pistols are reinforced with special stiffeners, which prevents various kinds of distortions of the tube during operation.Inexpensive and relatively high-quality version of the gun for fans.

Pistols of the domestic manufacturer, known under the Zubr brand, are consistently in demand on the market. The company is characterized by high quality products made of durable chrome-plated materials. Its devices are ergonomic and reliable - the warranty period is up to 5 years.

The Bison Expert model has proven itself in the market of construction tools. The release is a professional, half-open model with a case of high-quality metal. High-strength chrome-plated stock greatly facilitates the work. The model is designed to work with a standard tube 310 ml. The handle is strong and comfortable. A special “prick” is built into it, which allows not to clean the nose of the tube with foreign objects, if it has dried up. The material is taken directly from industrial goods. Decent gun in the middle price range.

For one-time work it is more rational to purchase an inexpensive, but high-quality pistol, without spending money on a brand name. In this case, the skeleton version is quite suitable.

If the scope of work is more extensive, for example, repairs in an apartment, then the best solution would be a pneumatic option.

When time of performance and accuracy of work performance are important, the battery option is more optimal.

The best samples of guns for sealant, regardless of whether it is amateur or professional, should be conveniently placed in the hand. Excessive muscular effort when you pull the trigger leads to fatigue of the hand, and hence to inaccuracies in the work.

When purchasing an inexpensive product, it is advisable to carefully inspect the existing rivets for quality fastening. Mounts in the gun should not have any backlash.

The most acceptable version of the handle, in terms of the strength properties of the product, of aluminum. Plastic parts and fasteners in products should be avoided.

Choosing a closed version of the gun, you must check its tightness.

Acquire the tool more profitable in special hardware stores.

Despite the relative simplicity of the device guns, in the process of applying the composition to the surface requires special care and attention when performingwork rules.

• Initially, we set the supply rod, or cut off the capacity nozzle to the selected sizes. Typical nozzles are available in diameters of 7 and 11 mm, however, other sizes can be supported in professional products.
• In the cavity for the capacity set tube (tube). Pre-tool should be slightly warm for greater flexibility of the mixture.

• In order to carry out the work process correctly, we recommend practicing on unusable objects in order to adjust to the level of effort expended to obtain the desired result.

• In the case of pneumatic or battery variants, we set up the necessary parameters for the delivery of the composition.
• Supply of sealant should be carried out smoothly and evenly, fully covering the treated area.

• Upon completion of the processing cycle, the excess mass of the composition must immediately be collected from the working area, since it will be much more difficult to perform later. Next, the tube is removed and the instrument is cleaned with solvents.

The syringe gun has a different filling procedure. First you need to make a hole in the cartridge, but if this is a prepackaged version of the sealant, then you should carefully cut off the corner of the package so that the substance can freely go out of the container.It is necessary to pack the prepared composition into a “syringe” so that the cut-off tip of the container is directed to the tip. Before you bookmark, do not forget to remove the rod from the pistol.

Careful maintenance of the tool is a guarantee of its long and trouble-free operation.

• After using the product it is always necessary to clean it - remove the remaining particles of the composition from the barrel and nozzle. Otherwise, the material will harden inside, which will make the device unusable.
• To continue work with sealants on a polyurethane basis, you must first remove the nose with the substance that has dried on it, then apply a different nozzle.
• White spirit is quite suitable for eliminating the remnants of fresh bitumen composition, hardened particles are mechanically removed.
• If you encounter difficulties in removing a significantly dried tube from the body of the product, it is better to contact the repair shop.

• Increased humidity and direct sunlight will lead to long-term or, conversely, to a rapid hardening of the sealant, which negatively affects the final results of the work.
• If necessary, align the sealant or push it into the gap, it is necessary,after wetting the fingers with soapy water, smoothly run over its surface.
• With soapy water it is convenient to remove sealant leaks.

Accurate and accurate, in accordance with the instructions, the approach to working with a gun and sealant completely allows you to carry out the entire scope of work with your own hands.

For information on how to use a sealant gun, see the following video.