Foam gun

When you need to fill a joint or a crack that has appeared in the wall, a foam gun comes to the rescue. There are a large number of models on the market, so before choosing, you need to find out all the advantages and disadvantages of each type, and also look at the rating of the best models.

Why do you need a spray foam gun?

A material that helps solve various problems during construction and repair is polyurethane foam. This is a sealant endowed with the qualities of resistance to the influence of negative factors. A foam gun helps you make full use of this material. Using this equipment, you can completely use up the contents of the container, and at the same time reach many hard-to-reach places with foam. Recently, they have begun to produce containers that cannot be used without a specialized gun.

This equipment is used when performing the following types of construction work:

• sealing joints of structures and furniture;
• insulation of building elements at the installation stage;
• gluing materials to each other;
• work related to soundproofing rooms;
• filling voids and cracks in structures.

Gun cost and manufacturers

As for the prices for this tool, they can cost 10 dollars (and there is no guarantee that it will work), and 20 - 50 USD. In the latter case, you will purchase a professional quality product. And naturally, it is advisable to purchase it not on the market, but in specialized stores.

Manufacturers include O (Belarus) and Workman (Canada). They are followed by Stayer, Hilti and Kraftool. The last group of manufacturers produces quite good products. However, there are many fakes. The original models last a long time. And fakes give up after the first use. Therefore, it is advisable to be alert and purchase pistols from trusted stores.

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We wish you success and pleasure from using a professional, high-quality tool. May every day bring you satisfaction from your work and joy from the results obtained.

Foam gun device

In general, the design is divided into the following elements:

1. A tube with two valves - nozzles.
2. Trunk.
3. Reducer or universal adapter.
4. Adjustment bolt (screw).
5. Fastening part.
6. Adjustment lever
7. Pistol handle.

Depending on the model, the following additional functional parts may be present:

• bolt-spacer;
• replaceable nozzles.

The technical characteristics of the spray foam gun determine the following parameters:

• model type;
• type of construction;
• body material;
• dimensions;
• product weight.

How to choose a foam gun

When choosing a gun for polyurethane foam, the emphasis is on the quality of its main parts. The most reliable product will be one made of metal parts. It is more acceptable if they are coated with Teflon or nickel. Some craftsmen prefer to purchase products with elements of impact-resistant plastic.

If work is carried out regularly, then you need to focus on the shape of the handle. It should be comfortable. And the gun itself is not bulky. These are significant factors that affect hand fatigue during long-term work with such tools.

Types of foam guns

On the modern market, various tools are sold for carrying out repair work related to foam. The main division occurs into:

• professional spray foam gun;
• household – non-removable (disposable).

Collapsible foam gun

This type belongs to a professional instrument. The collapsible foam gun consists of two parts. Such devices are more practical because they can be easily disassembled if necessary. Made from durable plastic or various metal alloys. Such pistols have many advantages (reusable, durable, easy to use) compared to disposable products, the only drawback is the high cost, but the quality of work minimizes this disadvantage.

Disposable spray foam gun

It is made of plastic and has a metal barrel. A disposable foam gun is inexpensive. The products are classified as semi-professional tools, but if they become clogged, they cannot be cleaned due to their solid construction. Among the advantages are the low cost of the product, but there are the following disadvantages:

• uneven supply of material;
• inability to use the material in the cylinder completely.

How to choose a gun for polyurethane foam?

When looking for information about which is the best gun for polyurethane foam, it is important to understand what to look for:

• smooth movement of the adjusting screw;
• the material from which the barrel and valves are made;
• cost of the product;
• comfort of the pistol grip;
• coating the surface of the product;
• gun barrel length;
• maintainability;
• the presence of a device for adjusting the speed of foam supply.

Gun for polyurethane foam - rating

To make the right choice of equipment, we suggest that you familiarize yourself with the list of popular options that ideally combine price and quality. The best household guns for polyurethane foam from an inexpensive series:

1. SIBRTECH 88671
   . Ergonomic version with plastic tip.
2. BIEBER MASTER
   . A stainless steel tube whose size decreases from the middle to the end.
3. PMP3220
   . The gun for spraying polyurethane foam belongs to the budget category. It is designed for low productivity.
4. FIT 14272
   . The zinc alloy body, in addition to the affordable price, helped this pistol become one of the best.
5. Stayer Master EconoMax
   . The aluminum cylinder holder is threaded.

The best professional guns for polyurethane foam:

1. FIT 14270
   . Aluminum alloy body, brass tube. The valves are nickel plated.
2. Kraftool Industry
   . The body is made of copper alloy. The perfect combination of cost and functionality.
3. Hilti cf-ds1
   . One of the best guns for polyurethane foam. Features a pointed tip for tight spaces.
4. Matequs Super Teflon
   . Elite instrument. Lightweight and at the same time has a collapsible design.
5. BISON Professional Buran
   . The cheapest of the proposed options. The body and drain are made of metal.
6. Matrix 88669
   . Gun for polyurethane foam with a Teflon-coated body. There are limiters on the handle.

The device of the gun for polyurethane foam

The tool includes the following main components and parts:

• handle for controlling the tool in the form of a pistol handle;
• trigger mechanism for starting and stopping the operation of the tool;
• foam supply adjustment screw;
• foam cylinder connection adapter;
• gun barrel for supplying foam to the application site.

Foam from the cylinder is fed into the barrel through an adapter and a ball valve. When the trigger is pulled, the double valve located in the barrel opens, and the foam contained in the high-pressure cylinder begins to come out. Using the lock on the back end of the barrel, you can adjust the foam stream.

How to use a spray foam gun?

The product is easy to work with, so even a novice builder can master the process. You need to know how to install a spray foam gun. To do this you should do the following:

1. Prepare the surface.
2. Shake the container with sealant for a minute.
3. The cylinder is placed on a flat surface and the protective cap is removed.
4. Place the foam gun on top and turn it all the way.
5. Turn the tool over with the handle down and turn the adjusting screw.
6. They pull the trigger and get to work.

The rules for using the pistol are as follows:

1. The device is held by the handle with one hand, and the cylinder can be held with the other.
2. The feed intensity is adjusted by moving the screw.
3. Vertical seams are closed using upward movements. Horizontal - in a convenient way. The wide seam is filled with zigzags.
4. The void is filled with foam by 30%.
5. When the foamy mass does not flow well, it is recommended to shake the container.
6. Upon completion of the work, the cylinder is removed, the gun is cleaned, rinsing the barrel tip.

Malfunctions of the spray foam gun

When the flow of sealant through the nozzle stops and a whistle from compressing air is heard, it means the device is clogged. The reasons for this may be the following situations:

• blockage at the nozzle outlet;
• complete drying of the foam on the ball at the end of the barrel;
• debris in the shut-off valve.

Having determined the cause, you need to know how to repair the foam gun. This can be done in different ways:

1. If the problem is dried foam, then you can remove it with acetone, a match, cotton wool or a screwdriver.
2. When the ball fails. Rinse the gearbox and thoroughly clean the inlet hole.
3. When this does not help, the foam gun is disassembled into parts and each part is thoroughly washed. Heavily contaminated parts are soaked in acetone for an hour.

Hilti foam gun

The company produces and sells professional models. For example, Hilti CF-DS 1 is very popular both among professionals and at home. This pistol will cost 2500 rubles. In return, you get an ergonomic design, a durable product, and overall high build quality. The anatomical handle has an anti-slip coating and fits well in the hand. The trigger is large enough and designed for two fingers, which increases the convenience of performing work. In addition, the Hilti CF-DS 1 foam gun has a safety lock. It blocks the trigger from being accidentally pressed while transporting or dropping the tool. The weight of the gun is only 480 grams, so the operator will not get tired while working with it.

DIY foam gun

Some craftsmen, in order not to spend money on purchasing a device and then cleaning it, came up with a home option. Let's look at how to make a spray foam gun from scrap parts. To work you will need:

• nozzle for cleaning foam guns;
• furniture hanging;
• nail dowel capsule;
• heat shrink insulation;
• a piece of transparent hose.

The assembly process consists of the following steps:

1. The furniture hanger is connected to the nozzle. If necessary, the holes can be adjusted.
2. The capsule from the dowel is put on the other end of the nozzle, and the insulation is placed on top of it.
3. A piece of hose of the required length is pulled over the structure.
4. The device is ready. It is not suitable for professional activities, but for one-time household work it is an excellent solution.