How to make car foam with your own hands. What you need to know when choosing a foam generator for a car wash? Video: Easy Foam Nozzle Repair, Bottle Replacement #1

Hello dear friends! Today we have a very interesting topic. Especially for those who prefer to wash the car with their own hands or think that the current prices for a car wash are too high. That is, he is going to move from the services of professional car washes to manual ones. Therefore, the topic of our conversation is a foam generator.

But not GPSS, which is used to extinguish fires by supplying foam. And not generators for foam concrete. Although their rental may be of interest to some, it is not about them.

We are talking about a special high pressure device that is used for. Such a garden tool that allows you to wash your own car on the territory of a private house or even in the courtyard of a high-rise building (who is not afraid of neighbors or other threats).

Of course, the job can be done with a conventional low pressure sprayer. However, it will not be possible to obtain a high-quality result from a sprayer. But penniki create a homogeneous and fine foam. Due to it, a wonderful effect is achieved. I use it myself, so I know what I'm talking about.

Device Features

It doesn’t matter if you buy an Italian foam generator or order from China, they all look about the same structurally.

The structure includes:

pistol;
mixer;
balloon.

A special nozzle, as well as a foaming tablet, ensures that this mixture is supplied under high pressure. As a result, the machine is quickly covered with a layer that cleans off the dirt.

Such washing cannot be called completely contactless. If you need a result, you will also have to work with sponges or brushes.

An important characteristic on which work and the best indicator of efficiency depends is the volume of the tank. Usually they are made for 25-100 liters. The compressed air supplied from the cylinder must have a pressure of 5-6 bar. At the outlet, the manual foam generator has a special regulator. It allows you to control the pressure due to the built-in pressure gauge.

Sprayer or generator?

Here there is a very important point. If you need a mini-sink, I advise you to choose a foam generator. Although many car wash vendors offer to buy a sprayer. Some even pass off an ordinary sprayer as a supposedly highly efficient foam generator.

In some cases, a universal sprayer can perform well. But he is inferior to foam, because he is not able to create the same persistent foam. At the output, you get a regular emulsion, the effectiveness of which is much lower.

Therefore, I will teach you to distinguish sprayers from generators.

the sprayer scheme does not provide for a regulator to control the quality of the mixture;
the sprayer has a larger outlet nozzle than a foamer.

These distinctive characteristics are enough to make the right purchase.

If we talk specifically about manufacturers, then you should pay attention to the following brands:

Karcher;
Monsoon;
Calm (Stihl);
Huter (Huter);
Bosch (Bosch);
Elitech;
Procar;
idrobase;
Interskol;
Champion;
Patriot.

Go to Aliexpress, read reviews, explore different stores. The Internet works 24 hours a day, so you can always find out information about a particular model.

How a foam generator works

Now we will study the principle of operation of such a device. And what is he? The work is carried out on the basis of fairly understandable processes.

In short, due to compressed air, a special shampoo passes through the foaming agent and the finished product, that is, foam, is obtained. Conventionally, the process of education is divided into two stages.

Primary foam. A jet of water under the action of high pressure exits through the jet and mixes with the shampoo. In parallel, air is added to the mixture, which is supplied through special holes. But such foam does not have the necessary characteristics, therefore it is not suitable for washing a car.
Finished foam. Here the main role is played by the so-called tablet. The mixture that we received in the first stage passes at high speed through the tablet. This is a small device that provides the creation of a foam mass with the desired characteristics. The foaming tablet is made of corrosion-resistant wire. They have different cell sizes. It is important to get high expansion foam. This directly affects the quality of the car wash.

At the exit, we get a stream of foam, which is easily applied with a hose to the car, and then washed off with water.

Advantages and disadvantages

Such a mini high pressure washer has important advantages:

the constituent liquids are converted into foam without loss;
the output is a stable mixture with excellent detergent properties;
foam consumption and parameters can be adjusted;
one charge of a cylinder for 50 liters allows you to wash from 10 to 15 cars.

But there are also a couple of disadvantages:

you will have to constantly refill the cylinder with compressed air;
you need to install a compressor.

Having at your disposal a good wash, using a special adapter, you can combine them into a common device. An excellent solution for those who have already acquired a car wash and want to increase the efficiency of their car wash equipment.

Some even create homemade apparatus from a fire extinguisher or other improvised means. There is even a row special videos, where everything is clearly shown. But I wouldn't recommend doing that kind of thing. If you want a foam dispenser and a really high-quality car wash, do not spare the money and buy yourself a good generator, even if it is Chinese.

But refinement is another matter. When buying a household or professional foam pen, many note that some spare parts are not efficient enough.

A little about improvement

How to make the foam generator work even better? Here we are talking about increasing productivity, that is, increasing the amount of foam created.

No complicated repairs are required. Yes, and you don’t have to open the drawing of the generator. The essence of the refinement is to start working better nozzle.

I note that many foamers experience problems with mixing components due to the imperfection of the standard nozzle. Water is supplied under low pressure, therefore, although the shampoo gets into the mixture, full mixing does not occur. There are models with a too narrow opening through which shampoo is supplied. The water just doesn't allow the detergent to push through.

There are two methods by which you can improve the lack of factory foams.

The price of such a refinement may be zero if necessary materials.

About shampoos

Where to buy shampoos? Any auto chemical store. But it is very important to understand how to use special chemistry.

Cities such as Moscow, Yekaterinburg, St. Petersburg and many others offer a huge range of special active foam. To be more precise, the concentrate is sold.

Try to choose quality mixes that are popular. Never take concentrates with a pH value of more than 12. More aggressive mixtures can corrode paintwork, chrome parts, rubber seals, etc.

It is also impossible for a shampoo to contain a component called sodium hydroxide or simply caustic soda. Manufacturers abuse it because it effectively destroys dirt and is cheap. But at the same time, it causes great damage to the paintwork.

Shampoo is used according to the manufacturer's instructions. Usually, up to 20 grams of the product goes to 1 liter of water. But figures may vary. Look at the label.

Of course, in the photo, generator sellers demonstrate the miraculous effect of contactless washing. But in practice it takes more time and effort. If you like to wash your car with your own hands, then having a foam generator will greatly simplify the task when compared with the standard set of a bucket of water, a sponge and car shampoo.

Write your opinion about foam generators. It will be interesting to discuss them with you. For those who, for some reason, do not want to have their own foam generator and sink, we advise you to go to. Information about it is already posted on the site.

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Touchless car wash allows you to quickly and efficiently wash your car without damaging the paintwork. The washing effect is achieved by car shampoo applied to the car body in the form of foam using special devices.

The foam nozzle is not the most accessible part. But you can replace it with a foam generator.

Types of car wash equipment

1.High pressure foam generator. Foaming occurs in two stages: first, when connected to a high-pressure apparatus (120-190 kg / cm²), primary (active) foam is formed, and then, due to the foaming tablet, stable high-expansion foam is obtained at the output.

2. Low pressure foam generator. Connected to compressor (6-20 kg/cm²). Foam is also formed in two stages, but of worse stability and not as plentiful as when connected to an AED.

3.Sprayer. Works like a regular garden sprayer, i.e. it sprays a solution of car shampoo. Low expansion foam.

4. Dosatron. The dosing pump is connected through a filter to the water supply network. Does not require compressed air and works without electricity. A low pressure spray gun is used to apply the cleaning solution. There is practically no foam.

The device and principle of operation of the foam generator

The foam generator is a metal tank with a capacity of 20-100 liters with a filler neck at the top, a drain valve at the bottom and two fittings. The inlet fitting is connected to the compressor, and a nozzle is connected to the outlet fitting for forming and applying foam. The tank is filled two-thirds with a cleaning solution (10 ml of car shampoo per 1 liter of water) and compressed air is supplied (at least 6 bar pressure). The resulting foam enters the outlet fitting through a special filter and, passing through the nozzle nozzle (foaming agent), is applied to the car body. Pressure control is carried out using a pressure gauge, and the filling of the tank is carried out with a water measuring tube.

Advantages and disadvantages of foam generators

The entire washing cycle (preliminary washing off of dirt and dust, applying a layer of foam, final washing of the car, drying) takes 15-20 minutes.

The absence of contact with the surface of the body during the washing process eliminates the appearance of microdamages, stains and turbidity paintwork.

Quality car wash hard-to-reach places car body is provided by the fluidity of the foam and the surfactants contained in it.

The formation of a thin protective anti-corrosion film after washing off the foam protects the paintwork.

The cost of a low pressure foam generator is measured in tens of thousands of rubles. Sprayers and dosatrons are cheaper, but the quality of washing is worse. The foam generator (foam set) is an inexpensive device, but it requires connection to a high-pressure machine, the cost of which is from 50 thousand rubles. It is easier and cheaper to make a low pressure foam generator yourself.

We make a foam generator from a garden sprayer with our own hands

For the manufacture of homemade foam generator an old garden sprayer "Kvazar" with a non-working pump or a pump-action "Beetle" will do. Buying a new sprayer for subsequent alteration will cost 500-800 rubles.

To supply compressed air, we drill a hole at the top of the sprayer body and insert a nipple with a check valve. If this option does not suit you, then you can unscrew the existing overpressure relief valve from the housing and, by inserting the nipple, connect the hose from the car compressor to it. The quality of the foam depends on the pressure value - the higher the pressure created by the compressor, the better.
We disassemble the spray bar. We tightly stuff the adapter tube with a fishing line or a metal washcloth for washing dishes to improve foaming at the exit.
In the intake hose in its upper part, from the side of the sprayer outlet fitting, we make 5-10 punctures for better foaming.
Pour water through the neck in the case with added car shampoo in a ratio of 1:50 or select the desired concentration empirically. The volume of the washing solution occupies 70% of the sprayer capacity. After turning on the compressor, we eliminate possible leaks and evaluate the quality of the foam.

Nuances in the independent manufacture of a foam generator

Making a foam generator with your own hands from improvised means, take into account the power of the existing compressor and the volume of the tank. The ratio of the volume of 20 liters and the pressure of 6kg / cm² will allow you to wash the car without additional topping up the solution in the tank.

The foam tablet device (foaming agent) determines the quality of the foam. If the stability and multiplicity of the foam are not satisfactory, then they buy a ready-made foam kit or modernize the design of a home-made foam concentrate.

What to make a foam generator

The base part of the device for creating foam is the tank on which the rest of the nodes are assembled. For the manufacture of the foam generator use:

Metal pipe.
Garden sprayer.
Propane tank.
Water heater tank.

How to make a do-it-yourself foam generator from a water heater (video)

See how an efficient foam generator works and what it takes

Outcome

Knowing the device and the principle of operation of the foam generator, motorists independently manufacture washing devices. Saving money is obvious, but do not forget about common sense. Homemade foam, dried and not washed off in time, damages the paintwork of the car.

The contactless method of car washing has a number of advantages, but the main advantage is the absence of the possibility of damaging the paintwork. The effectiveness of the contactless washing method is achieved thanks to the car shampoo applied to the body in the form of foam. To turn the gel into foam, special devices are used: foam generators, sprayers and dosatrons. To wash a car with shampoo, it is not necessary to sign up for a car wash, as this can be done at home. To convert shampoo into foam, you need to design a foam generator with your own hands.

Design features of the foam generator device

Before you figure out how a foam generator is made, you should understand its design and principle of operation. A foam generator is a metal tank or tank, the capacity of which is from 20 to 100 liters. In the upper part of such a tank there is a filler neck, as well as a drain valve with two fittings. One of the fittings (inlet) is connected to the compressor, and a nozzle is connected to the second (outlet) to create foam and apply (spray) it to the car body.

The tank, depending on its volume, is filled with a special cleaning solution, the amount of which is 2/3 of the tank capacity. The solution is a mixture of 10 ml of car shampoo with 1 liter of water.

This is interesting! Additional protection of the car body with shampoo is achieved due to the content of wax in it.

After filling the tank with detergent, the compressor turns on and compressed air is supplied to the tank. To create foam, the air pressure must be at least 6 atmospheres. Shampoo foam is formed in the tank under the influence of compressed air, which enters the outlet fitting through a filter and a sprayer (foaming agent). The sprayer is located in the nozzle, through which foam is supplied to the car body. The pressure in the tank is controlled by a manometer, and its level of filling is controlled by a special water measuring tube.

The main purpose of the device is the formation of foam from the working solution

Thanks to this device, a person does not need to come into contact with the chemical, and applying shampoo in the form of foam contributes to a better washing of dirt from the car body. In addition, the speed of car washing increases, which takes no more than 15-20 minutes. A number of additional advantages of using a steam generator also include:

The complete absence of physical contact with the surface of the body. This eliminates the occurrence of damage, stains and clouding of the paintwork product.
The ability to remove dirt in hard-to-reach places.
Additional protection of the paintwork due to the formation of a thin protective anti-corrosion film.

However, of all the advantages, it is important to highlight the disadvantage, which is that a factory-made steam generator is quite expensive (from 10 thousand rubles, depending on the capacity). Based on this, many home craftsmen resort to the manufacture of low-pressure steam generators. This approach allows you to significantly save finances, as well as get a high-quality steam generator for home use.

Features of the manufacture of a foam generator for washing

The cost of the cheapest foam generator for washing will cost more than 10 thousand rubles, and with an independent approach to the manufacture of the device, no more than 2 thousand rubles will be needed. This amount can be even less if the arsenal contains the items necessary for the construction of the device. For such purposes, you will need the main elements presented in the form:

Capacities;
reinforced hose;
pressure gauge;
metal clamps;
Shut-off valve;
metal tube.

Before proceeding with the manufacture of the foam generator, it is necessary to select the appropriate tank. The main requirement for the tank is the ability to withstand pressure up to 5-6 atmospheres. The second requirement is the volume of the product, which must be within 10 liters. This is the optimal volume to apply the foam to the car body at one time without re-adding the cleaning solution. All other products can also be found in the garage or purchased in their absence.

The scheme of the foam generator for washing has the form shown in the photo below.

The reservoir of the device must withstand pressure up to 6 atmospheres inclusive

Preparation of drawings in the manufacture of the device

Before proceeding with the manufacture of a homemade foam generator, it is necessary to prepare drawings with outlines. This will not only allow you to understand what you need to get homemade, but also help you avoid missing out on the following tasks:

Determining the sequence of the operation for assembling the product.
Formation complete list necessary materials and parts.
Preparation of tools that will be needed for the manufacture of products.

A drawing of a home-made foam generator circuit is shown in the photo below.

For clarity, it is best to make a sketch on a piece of paper.

Based on such a scheme, you can compile a list of necessary materials, as well as tools for the manufacture of the product. In each case, depending on what the foam generator will be made of, the necessary expendable materials will differ. Some of the required tools include:

Spanners;
Roulette;
Pliers;
Bulgarian;
Screwdriwer set;

After the sketches are completed, you can begin to manufacture.

From the sprayer "Beetle"

Surely at the disposal of many there is an old garden sprayer of the Zhuk brand or its analogues. It can be used not only for its intended purpose, but also for the manufacture of a foam generator for washing a car. Consider what the manufacturing process itself is. To get started, you will need to use the following types of materials:

Capacity. A tank from a Zhuk garden sprayer or other brands, such as Quasar or Spark, is used as a reservoir.
Manometer designed to measure pressure up to 10 atmospheres.
A valve that will regulate the flow of foam.
A metal tube with a nozzle for carrying out the spraying process.
A hose that can withstand pressure up to 8 atmospheres.
Hose adapter.
Clamps.
Automobile nipple with a shut-off valve that conducts compressed air in one direction only.
Two ½ inch squeegees or nozzles and 4 seal nuts.

The spray tank is the ideal option for making a foam tank

The foam generator is based on a metal mesh or tightly whipped fishing line, with the help of which the cleaning solution will be sprayed. You can purchase a ready-made foam tablet in a specialized store.

A foam tablet that is responsible for the consistency of the solution can be purchased at a store or made by yourself.

It is important! The capacity of the foam generator must withstand pressure up to 6 atmospheres. The plastic tank should not show signs of deformation and damage.

When working with the device, protective clothing is worn, as well as protective equipment. When all the materials are ready, you can begin to design the device.

Need to be removed from the sprayer hand pump and then plug the existing holes.
2 half-inch spurs are installed at the top of the tank. To fix the sgons, nuts are used, which are screwed on from both sides. The tightness of the connection is carried out by using gaskets.

To ensure tightness, it is possible to use sanitary gaskets

A T-shaped adapter is installed in the air supply nozzle. A pressure gauge is attached to it, as well as a shut-off valve.
Attached to the squeegee inside the tank steel pipe by screwing onto a threaded connection. From this pipe, air will be supplied to the bottom of the tank, thereby foaming the liquid.
From the second nozzle, foam will be supplied. A tap is installed on the nozzle, as well as a foam tablet. The hose is connected to the nozzle on one side, and to the metal tube on the other. A nozzle or atomizer is attached to the metal tube, after which the device is ready for use.

The resulting design is very similar to the factory

To be able to regulate the pressure in the tank, it is necessary to install a special air injection control valve. This valve will relieve excess pressure in the tank.

You can simplify the manufacture of the foam generator by using a hose with a sprayer, which is completed with a sprayer. To do this, the sprayer needs to be slightly modified:

Make a small hole in the shampoo intake hose. This hole is made under the very top, and its purpose is to mix air with shampoo.

The hole made in the tube is necessary for additional air supply

The second type of modernization involves the manufacture of a foam tablet from a metal dishwashing brush. This brush is located inside the adapter tube. Instead of a brush, you can install a foam tablet or a ball of fishing line.

Using a dishwashing brush as a foam tablet can help you save money

To supply compressed air to the tank, you need to drill a hole in the sprayer body and install a nipple into it. Connect the hose from the compressor to the nipple, after which one part of the compressed air supply is ready.

After that, we get a simplified version of the foam generator with our own hands, which will serve for a long time and efficiently.

From a fire extinguisher: step by step instructions

Consider what is the process of manufacturing a foam generator from a fire extinguisher. To do this, you need to use an old five-liter fire extinguisher with a gas generator. This volume is enough to wash the car from one refueling of detergent.

The body of the fire extinguisher is a priori designed for high pressure, therefore it will be an excellent option for the manufacture of a foam generator

A fire extinguisher with a gas generator is an almost ready-made foam generator that requires minor modifications. In addition to the cylinder, the following materials will be needed to build a foam generator from a fire extinguisher:

Valve for tubeless wheels.
Brushes for washing dishes.
Grid with a small cell.
The hose that will be used to connect the canister to the foam gun.
Clamps for secure fixation of the hose.
Sealant that can be used to seal threaded connections.

From necessary tool All you need is a drill and a hacksaw. After that, you can get to work:

Initially, the locking and starting device of the fire extinguisher is unscrewed. At the bottom of the cover is a tube with a gas generator. The gas generator is a small container for compressed air.
The locking mechanism is disassembled. The tube and cylinder are unscrewed together with the couplings.

The locking mechanism is disassembled, and the tube and cylinder are unscrewed

The gas generator is to be sawn into two parts, for which a metal sheet is used. Top part of the gas generator must be at least 4 cm long. In the future, this will be our foaming tablet.

The upper part of the gas generating device must be at least 4 cm long

The lower part of the gas generator is retracted to the side. We proceed to the manufacture of the tablet, for which a round mesh is cut along the diameter of the gas generator. It is located inside this balloon.

As in the previous case, we will use dishwashing brushes to create a foaming tablet.

The cylinder also contains metal brushes, which are designed for washing dishes.
To prevent the washcloths from falling out, another fixing mesh is installed. The diameter of the mesh must be larger than the size of the balloon for tight fixation.
A hole is drilled in the sleeve where the cylinder neck is screwed in, which is necessary to improve the foam's permeability. Drilling is carried out until the diameter is at least 7 mm.
After that, a homemade foam tablet is screwed into the hole. To seal the hole, the threads must be coated with sealant.
At the next step, a hole is drilled in the fire extinguisher body, where the tube coupling will be screwed. A fitting will be installed in this hole, so it must be of the appropriate size. Optimal size is 10 mm.
The valve is installed, and the tube coupling is immediately screwed in. This valve will be used to pump compressed air into the fire extinguisher tank.
A tube is put on the coupling, after which the air supply line to the cylinder is considered ready.
A foam tablet is screwed into the second hole of the cover, after which you can start preparing the gun.
The old hose is disconnected from the fitting, after which it is screwed into the locking and triggering mechanism from the gun.
The parts are connected to a new hose, and connected to a shut-off device.
Hose connections must be secured with clamps.

The device from the fire extinguisher is reliable and has a much longer service life.

The device is ready for use, and to facilitate its transportation, handles or holders can be welded to the cylinder. The device is ready, so you can start testing it. Pour 2 liters of water into the container, then add shampoo. The ratio of shampoo to water can be specified on the packaging with the chemical. The pressure in the cylinder should not exceed 6 atmospheres. If the pressure is lower, then in the process of washing the car, pumping will be needed.

This is interesting! Even if there is no compressor at your disposal, you can pump air with an ordinary hand or foot pump.

From a plastic canister

If there is an old plastic canister in the garage, then a foam generator can also be made from it. The advantage of using a canister is the ease of manufacture of the device, as well as minimal costs. Of the tools and materials you will need:

Compressor;
Plastic canister;
Bulgarian;
flush tubes;
Pistol;
Keys set.

The principle of manufacturing a foam generator from a plastic canister is to perform the following manipulations:

An inch tube 70 cm long is filled with fishing line or a metal brush.
At the edges, the tube is fixed with special plugs using threaded connections.
On one of the plugs is a T-shaped adapter.
A fitting is installed on the second plug.
Hoses and taps are attached to the T-shaped adapter on both sides, through which the water supply will be shut off.
On the one hand, the compressor will be connected, and on the other, foamy liquid will be supplied from the tank.
It remains to put on a gun and use a homemade device.

Penogen from a canister does not require a huge investment of time and money and is known for its ease of execution.

Schematically, the design of the foam generator will have the form shown in the photo below.

General scheme of a homemade device from a canister

From a gas bottle

A metal barrel of a cylinder is an excellent option for making a tank. Its advantage lies in the thickness of the cylinder walls, which are able to withstand high pressure. As in previous cases, you first need to prepare the drawings. After that, collect all the necessary materials and tools, and only then begin work.

Foam check valve drawing

A check valve with a pressure gauge will be used to supply air. The drawing of a homemade foam tablet looks like this.

We will use fluoroplastic as a material.

You will also need to make a nozzle for spraying foam. This nozzle will be put on the hose through which the foam is supplied. The scheme for manufacturing a nozzle for a sprayer is as follows.

From the materials you will need the details that are shown in the photo below.

Necessary consumables for the manufacture of the device

The manufacture of a foam generator for washing is carried out from a cylinder with a capacity of 5 liters. You can use a larger tank, but only this is not necessary.

Once everything is ready to work, you can proceed:

Initially, the handle is dismantled from the cylinder and 2 holes are drilled.
After that, using a welding machine, a fitting with a 1/2 ″ thread is welded into which the valve will be screwed.
A tube is welded to supply air to the cylinder. She must hit the bottom. After welding, a non-return valve will be screwed onto the tube. In the tube, you need to make several holes in a circle with a diameter of 3 mm.

To supply air to the cylinder, we weld a tube

After that, the handle to the cylinder is welded into place.
We proceed to the assembly of the check valve. To do this, you need to make a membrane from a thin elastic band. We also drill 4 holes with a diameter of 1.5 mm. Appearance membrane is shown in the photo below.

4 small holes are drilled around the center in the membrane

The resulting check valve must be screwed onto the tube, and a manometer with a quick-release “dad” should be installed.

The check valve is screwed onto the tube

Now you need to make a device for removing foam. To do this, a tap is fixed on the fitting.

We use a crane to remove the foam to the outside.

A tablet is fixed to the tap, which can be made of stainless steel.

A hose with a diameter of 14 mm is put on the brush. Let's start making the nozzle. To do this, you need fluoroplastic, as shown below.

Nozzle material - fluoroplast

The filler neck is made from a regular cylinder check valve. To do this, the valve is drilled and a M22x2 thread is cut into it. The stopper is made of PTFE.

After that, you can pour 4 liters of water into the balloon, as well as 70 g of shampoo. On this, the process of manufacturing a foam generator from a cylinder is considered complete, and you can start testing it.

Device upgrade

Refinement includes improving the functioning of the nozzle. The disadvantage of regular nozzles is that water is supplied under low pressure, so full mixing is not observed. Consider two ways to refine factory foam generators.

Nozzle replacement

To upgrade, you will need to use a screw nut. You can find it in the system unit of the computer. This is the product that fixes the motherboard. The advantage of a screw nut is that it is made of soft materials, so it will not be difficult to drill a hole in it. To do this, take a drill with a diameter of 1 mm. A hole is made in the middle of the nut. A cut is made from the end part so that it can be screwed with a screwdriver. The resulting device should be screwed inside the nozzle.

Now you need to take a slightly larger nut of a similar type. A hole with a diameter of 2 mm is drilled in it. From the side that will be turned towards the nozzle, the nozzle is installed. To do this, a core is taken from a gel pen, from which a part with a length of at least 30 mm is cut off. A hole with a diameter of 4.6 mm is made on the nozzle in the upper part. Everything is sealed with a sealant. You can start testing.

Mesh Nozzle Upgrades

The mesh in the nozzle plays the role of a water divider and a foam former. The disadvantage of nets is their rapid wear. To finalize the product, you will need to use a jet from the carburetor of any car. You will also need a mesh made of stainless material.

The jet must be placed instead of the standard nozzle, paying attention to the dimensions. If necessary, drill a hole to accommodate the jet. According to the standard grid template, you need to make a new one. The new mesh should have a mesh diameter of no more than 2 mm. After that, the product can be installed in place of the regular one and tested in action.

Summing up, it should be noted that it is not difficult to build a foam generator for washing a car. All parts and tools are available in every garage, so if such a need arises, you need to take it and do it. The material contains indicative samples, so in each individual case you can use your own ideas.

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In a contactless car wash, the use of detergent mixture generators fully justifies its high initial cost. The purchase of such expensive equipment for domestic use few can afford. Whereas everyone can design a foam generator with their own hands. For this you need: straight hands, improvised materials and a little ingenuity.

Foaming agent design

As you might guess from the name of this device, its main purpose is to bring fluid chemical composition to a foamy consistency. The latter, due to its porous structure, lingers better on the surface, cleaning the car from persistent mud deposits.

The foam generator device includes the following elements:

storage tank for concentrated car shampoo;
foam tablet. It is this detail that is responsible for the consistency of the outgoing substance;
a nozzle spraying the prepared composition;
torch spray regulator, responsible for the area covered by the jet.

The foaming agent can be of two types:

If you decide to make a foam generator with your own hands from improvised means, then the first option is more preferable. Technologically, such a project is much easier to implement.

Operating principle

To repeat the foaming device at home, you need to clearly understand how we will get the finished car wash mixture at the exit.

Compressed air is supplied to the concentrated shampoo tank, which starts the initial foaming process. The oxygen-enriched mixture passes through the foam tablet. It is in this place that the formation of a stable composition used to clean cars occurs. The regulator, which is arranged using parallel plates, allows not only to dose the supply power, but also makes the torch flat (this method allows you to cover the maximum area of \u200b\u200bthe car body).

Material for manufacturing

The foam generator for washing can be constructed from readily available materials, some of which many experienced car owners do not even have to buy.

To build, you can use:

container with a volume of more than 5 liters. Cylinders from freon, propane or other containers of a similar type are best suited. It is possible to use thick-walled plastic sprayers for the garden;
compressor for pressurizing the receiver. The minimum value is about 6 atm;
hose with a minimum section of 20 mm:
as a foam tablet, you can use a foam sponge, fishing line or thin wire. It is possible to use an aerotor;
the foaming agent restrictor can be made from a mesh with large honeycombs;
adapter, as well as connecting elements that can be purchased at any plumbing store;
fumlenta for sealing threaded connections;
gun for supplying the finished solution to the car body. The handle with the attachment can be purchased from gardening supply stores.
it is advisable to install a manometer.

Tool

Designing a foam generator for washing, as well as repairing or servicing a car, is impossible without certain tools. For work you will need: grinder, tape measure, caliper, spanners, pliers, knife. When working with a metal container, a welding machine may be required. In any case, a lot will depend on the device configuration you choose.

Construction process

You need to understand that a homemade foam generator is always room for your own imagination and ingenuity. The instructions below are only guidelines, and possible way how an aggregate of this type can be arranged.

Consider the process in stages:

we fill one end of the prepared hose with a foam sponge crumpled with a thin wire or fishing line (minimum length 50-70 cm). The density of the foam will depend on the amount of filling material. To prevent material from entering the nozzle, we put a mesh limiter. We attach the designed gun;
one adapter for air supply crashes into the container. The receiver must be designed in such a way that air is supplied from the bottom. To do this, it is enough to lay the tube from the connector to the very bottom of the tank. The use of an adjustable adapter allows you to control the power of the supplied jet. Another input will be used to exit the finished mixture. By the way, a foam tablet can be placed in this place;
the air supply hose is connected to the compressor, the threaded connections to the body and hoses are sealed with fum tape. Provide openings for filling the receiver with concentrate, which will be hermetically closed during the operation of the foaming agent;
to control the pressure in the system, you can install a pressure gauge. You can embed it both in the body of the receiver, and mount it using a mixing type adapter.

The device is ready for car washing. The manufacture of foam concentrates of this type is much cheaper than buying a finished product. If you don't have an air compressor, you can use car washes to build up pressure. The only drawback is that the concentrate consumption increases.

One of the most important automotive products familiar to every driver is car shampoo. It gives the car an updated look, relieving the surface of the headlights, bodywork or glass from dirt and dust. Many car enthusiasts use inappropriate car wash products. Among the negative effects that remain after washing, it is worth highlighting those remaining after the procedure:

cloudiness;
stripes and stains;
dirt and greasy stains.

If you use chemicals to wash your car incorrectly, you risk damaging the varnish. This will entail subsequent considerable expenses for its restoration.

Active Foam Effect Car Shampoo

Despite the fact that many motorists mistakenly believe that only simple soap is in the composition of car chemicals, this is not at all the case.

If you want to achieve the highest quality effect, you should use only specialized formulations with a specially developed recipe for washing cars. This will help you save time and money.

Manual car wash

Car washing can take place:

at home;
at the car wash.

Contactless car wash at home

In any case, a professional composition for washing is necessary. This is due to such reasons:

providing a large amount of foam;
the ability to wash dirt, oil, soot and other contaminants that ordinary shampoo or dishwashing detergent cannot handle;
several variations (for manual or contactless washing, in jars or canisters).

Washing a car at a car wash

Fund types

In the market or in a car shop, you can find products presented in this form:

Powder. Requires dilution in water.
Paste. Diluted in less water than powder.
liquid mixture. It is used, as a rule, at the rate of 30-50 grams per bucket of water.

All the tools that you can buy or make with your own hands can be divided into:

compositions for contactless washing;
means for manual washing.

Car shampoos for manual car wash

If you are going to make a formula shampoo, this involves using it at home. Having made such a mixture, you can wash the car with a bucket of water and a sponge.

You can achieve a large amount of foam using special nozzles for whipping the composition.

Car shampoo for contactless car wash

remedy recipe

Make a professional composition that will provide a large number of foam and wash even the most persistent dirt, you can do it yourself. It is known that the basis of the basic formulation of car shampoos are surfactants - surfactants. They are made from the following types of raw materials:

natural. It is based on vegetable oils (those species that are not eaten), wool wax or animal and fish fat;
synthetic: petroleum paraffins, propylene, ethylene, various olefins.

Application of surfactants

If, until the 60s of the twentieth century, natural sources of raw materials were the basis of surfactants, today synthetic surfactants can be found on sale more often.

Despite the impact on various surfaces car, detergents consist of several components that you can buy separately to prepare the substance you need:

bases (surfactant);
complexing agents.

Car wash with foam

The base is very important. It in liquid varieties of the mixture is water, which has an indicator of the content of acids and alkalis (pH = 7). It is the safest for chrome, rubber, and varnished surfaces. If you can’t buy just such water, pay attention to a liquid with an acid-base index from 6 to 9.

The base removes dirt from surfaces, and it is contained in the amount of 5 to 30%.

For example, for non-contact auto chemicals, more aggressive compounds are used, and to ensure safety when working with hand mixes- neutral or slightly alkaline environment. The most common are nonionic and anionic surfactants. They are hydroxyethylates of fatty types of alcohol.

The next components that you cannot do without when creating an auto chemical mixture for contactless or manual washing are complexing agents. They are able to reduce the hardness of water and relieve surface tension. Without them, your do-it-yourself professional car wash will not flow and will not penetrate into hard-to-reach areas of the bodywork.

The result of washing the car with car shampoo

These include:

foaming agents. They ensure the formation of foam from detergents, which positively affects the final result of a contactless or manual car wash;
additives and other additives. Of these, on sale separately, you can find silicone resins, polyacrylamides, polyphosphates. Also, if you want your mixture to protect your car from corrosion, look for anti-corrosion additives. There are also additives on sale that will help dry the car faster;
polishes. Polishing agents added in a small amount form a finely dispersed protection against mechanical and chemical damage on the surface. You can find polymer, silicone or wax polishes in car dealerships;
fragrances. It is not necessary to add them to the product, but they are able to neutralize unpleasant odors other components of the mixture.

Active foam for touchless do-it-yourself washing

By mixing together the above components, you can get the contactless shampoo you need. The proportions in which the components are mixed will be determined by you. If you think that you can’t cope with the preparation of shampoo with your own hands, you should still trust the professionals by purchasing high-quality and professional mixtures.