Filling paint into an aerosol can is one of the components that ensures the sale of the coloring composition for a fairly high price. If we consider that painting from a spray can is disproportionately more convenient, and is widely used in the automotive business, when a person repairs a car with his own hands in order to save money on a car service, then the high cost is an extremely negative moment.
A spray can usually lasts for a short time, it costs quite a lot, then there is a natural desire to save money, not paying each time the cost of new cans, and the injection process, which can be done independently.
This is quite possible if you do it yourself from a purchased large container with a coloring composition, which is much cheaper in this form, if you fill the paint into the can. To do this, you need to purchase one disposable from a good manufacturer, and carry out the process of converting the used container from aerosols into a vessel into which you can pump paint repeatedly.
The second possible option is to purchase special equipment for refueling aerosol cans, which is not sold everywhere, and is quite expensive. The third is to refuel in an appropriate workshop, where there is such equipment, but there it will be about half of the cost of the refilled paint, and perhaps a small discount will be made for several cans.
How to remodel an existing container
To alter a disposable vessel so that it can be filled with paint with your own hands, you need to take the already used one, choosing a model with a good, hard bottom and a tube nozzle. Of course, the paint will not be refueled under such pressure as in factory conditions, but refueling can be done repeatedly, and practically nothing to pay for it, except for the cost of the dye composition. And this will save almost half the cost of the dispersed spraying process. This will require:
- used aerosol can;
- a nipple that can be cut from an old bicycle tube;
- large medical syringe;
- pressure gauge (not necessarily new);
- machine or bicycle pump.
For the manufacture of a reusable spray paint can, these things, which can probably be found in the garage, or on disassembly, are quite enough. To fill the aerosol can, the cap and the spray are removed from it, the paint is drawn into the syringe, and the syringe is inserted into the can as far as it will go, with the safety valve released.
You can also use a container of deodorant by adding a few metal balls there. The injection is carried out in this way until the level of the composition reaches about 2/3 of the volume of the vessel. Then the bicycle nipple is inserted and the can is filled with compressed air.
On the video: installation for filling aerosol cans.
Required refueling conditions
Filling of aerosol cans with compressed air is carried out to a pressure of about 3-5 atmospheres. At a lower pressure, filled vessels do not spray paint; at higher pressure, they can easily explode. This is what the old pressure gauge is for. After air injection, the nipple, put on for refueling aerosol cans, is removed, the cap with the spray is installed in place.
Shake the container with the injected liquid and air and check the spray rate on any suitable surface. Many motorists refuel cans at specially designated points to save time, and do not imagine that there are no secrets in how to fill a can of paint, and you can save not only time, but also money.
How to pump paint into a spray can (2 videos)
Spring has come. Many teenagers almost instantly had thoughts of going to the nearest abandoned place and drawing branded graffiti, for which they would need an incredible amount of cans of paint.
Important: You should not abuse this kind of activity, it is illegal, for such hooliganism the current legislation provides for administrative liability.
However, many people will also need spray cans for quite acceptable purposes, for example, painting their new craft. However, the cost of one spray can is quite high, and if a lot of them are required, and possibly also in different colors, the wallet of a creative person will be significantly empty. In order to prevent this, you can make a homemade refillable spray can, which will greatly alleviate financial losses.
How to make a spray can reusable with the help of available tools?
In order to make such a tool, you need to follow a simple sequence:
- Find an old used spray can. If there is no such thing nearby, you can simply purchase a new one, use it for its intended purpose, and then proceed with the modernization of our tool.
- To begin with, in an already empty can, a small hole should be drilled in the bottom. Do not forget that there is still a little old dye in the spray can, which means you need to rinse it thoroughly with a solvent.
- For the next step, you need to clamp the nipple in a drill and clean it from the camera by tinning it.
- After that, you can safely install the nipple in our spray can. Next, you need to add a little water, and then pump up the balloon. If the formation of bubbles does not occur, everything is done correctly.
How to use it?
As a result of completing all of the above points, a new can will be released, which will not be thrown away after the first use, because it can always be refilled with a regular syringe. What is needed for this? It is enough just to purchase a special paint and mix it with a solvent. This is to ensure that the paint does not come out too thick or too thin. Such actions help to regulate the density as the user needs. Also, we must not forget about pumping air by pumping.
What are the savings? How much should you spend and how much can you save?
In fact, simple math works here. One can of paint, containing about 400 ml, costs about 200 rubles. Buying paint separately will cost about 70 rubles per 1 liter, and 500 ml of solvent can be purchased for 40 rubles. It turns out that for 110 rubles we get at least a liter of paint, while in the store for 200 we buy only 400 ml. By simple calculations, you can determine that for the same spray can, made by yourself, you will need to spend about 50 rubles, instead of 200. The savings are quite impressive, which is good news. However, this method also has a number of disadvantages, for example, pumping paint through a syringe or mixing it with a solvent on its own.
The use of paint in aerosol cans is one of the options for surface painting. This significantly reduces material consumption. The required color is selected according to the marking on the product. This is important if the paint is not applied to the entire surface, but only to some part of it. The filling of paint into an aerosol can can be carried out independently.
Pros of using balloon dye
Paintwork materials from an aerosol can is valued for a number of its qualities:
- The dye is used sparingly. All sprayed material falls on the surface to be painted. Since no painting tool is involved, no paint residue remains on the brush or roller.
- Spraying begins immediately after shaking the dye bottle with the balls inside it. It is enough to do this for 5 seconds. Other types of paints are prepared for application more thoroughly: they are mixed until a homogeneous mass, diluted with solvents to the desired consistency, and poured into a convenient container. Saves time for staining.
- Dose usage control is easy: by pressing the spray button.
- With the dye in cylinders, a part of the surface is refurbished. The place of staining after the paint dries does not stand out against the general background.
- The balloon allows you to paint the most difficult to reach places. The paint spreads evenly over the entire surface.
- A beginner in painting can do the job, no special skills are needed.
- There is no need to purchase special equipment for surface painting and cylinder filling.
- If the material has not been used up to the end, then you should not worry about its safety. In a bottle, it retains all the qualities of the manufacturer
- The container is sealed, which allows you to store and transport the dye without worrying about it spilling out.
- There is an opportunity to carry out repairs without a car service at the time of financial difficulties.
- The cylinders are filled with paint of different composition and intended for painting different surfaces: wood, plastic, glass, concrete. It is applied both to the outer surface and to the inner part.
Conditions for filling the balloon with dye
Injection of paint into aerosol cans is carried out if the following conditions are met:
- It is known that paint residues after painting will not be needed for a long time and should be kept.
- The paint color used is difficult to match among ready-made dyes in containers. Therefore, it is refueled for safety in case of restoration work.
If the dye in the bottle will not be used at the moment, then it is better to fill it on specialized equipment at the company. If painting is urgent, then you can fill the container yourself.
Colorant refill elements
Algorithm for filling the container with dye
Pumping cylinders using professional equipment is advantageous in terms of capacity, but is not available because of the high price. Self-filling aerosol cans with paint is justified by its low costs and ease of use. Although the container is not filled to the maximum volume.
The aerosol container can be used more than once.
Before filling the spray can with paint, prepare the tools:
- A container-container is being prepared: an empty deodorant, from under the dye. A paint bottle of one type is pumped in with paint of the same type: acrylic after acrylic, alkyd after alkyd. Otherwise, a "chemical conflict" can occur. The quality of the paintwork coating will suffer from this.
- The dye of the desired shade, purchased ready-made or tinted with your own hands, can be refueled.
- The dye is pumped with a large volume medical syringe. If an additional broken needle is used, the release of the safety valve will be more effective.
- A nipple taken from an old bicycle camera is activated.
- For a bike or car pump for pumping up the chamber.
- Pressure measuring gauge.
Before filling the spray can with your own hands, remove the cap and spray from the container. The rest of the steps are performed in strict sequence:
- The syringe is filled with dye.
- The needle on the syringe squeezes out the safety of the balloon, and the syringe is inserted into the container until it stops.
- The paint is pumped into the bottle. HER number corresponds to a certain shade. You can select the desired color by fan. The colors for tinting are most often selected from the RAL, NCS, Pantone catalogs. Mixing the base colors allows you to get the desired shade.
- Actions are performed until 2/3 of the container is full. So, for example, a 520 ml bottle is pumped into 400 ml. This capacity is enough for painting 1.5 m 2 if the paint is applied in two layers.
- To stir the dye, 5 balls are added to the balloon. Bicycle bearing balls will do.
Useful video on the topic:
To spray, add air under pressure to the tank to be filled:
- The release of the safety valve is carried out by the bicycle nipple. It is inserted into the can.
- The bicycle pump is connected to the nipple. Air is pumped to a pressure of 5 atmospheres. Low pressure does not provide good spray quality. If the indicator is greater, then the capacity is ruptured.
- The nipple is removed and the spray button is installed in its place.
The can is ready to use. It is shaken, the paint is mixed and the spray control is carried out. A small dose of dye is applied to the unnecessary surface.
Application area
Dye in aerosol is used:
- For coloring decor in the interior.
- For applying a complex unusual configuration to the surface of a structure.
- For refurbishment of a car body part.
- Used to paint graffiti on wall surfaces.
- For airbrushing on cars.
- Used for restoration.
Technique for applying dye from an aerosol can
In a room with room temperature, paintwork materials lay on the surface better. At the same time, the room is ventilated, respirators are put on the face.
- The surface for painting is washed out and dried.
- Degreasing of the place of painting is carried out.
- Construction tape creates the boundaries of the spraying site. Newspapers or a covering film cover areas of the surface that will not be painted.
- If the surface is leveled, then putty is used... It is applied across scratches. Leveling the applied putty, the hand moves along the line of scratches. At a temperature of 25 ° C, the treated surface dries for half an hour.
- Hard fiberglass putty is sanded with sandpaper in the form of a bar with a grain of 60-240; for soft putty, grain 180-320 is used. It is left in this state for 24 hours.
- The next step is to apply a primer. The primer is applied in several layers. There is 10 minutes of drying time between them. When the priming is finished and the surface is dry, the surface is treated with sandpaper with a grain of 500, and finally - 1500. For metal, a primer is a protection against corrosion.
- The resulting surface is degreased before painting.
- You can start painting. The container with the dye is shaken. It is applied at an angle of 90 ° to the surface. The can is located at a distance of 30 cm. Paintwork is applied in 3 layers. It is kept for 15 minutes between painting. Full drying of the enamel occurs in 25 minutes. The material is applied evenly, without smudges.
- To strengthen the coating, sometimes the surface is varnished according to the same scheme as the dye. After 24 hours, the varnish dries. Polishing is carried out after a few days.
Paintwork materials from an aerosol container tolerate direct exposure to sunlight. Has a high degree of abrasion. The lacquer on the surface gives it strength and shine.
A spray bottle is an indispensable item for a household. It is much easier to paint a car, make repairs, and whitewash trees if you have a sprayer at hand. In pneumatic, it breaks down into tiny particles under the action of air. The electric spray gun works without the use of air - the dye is forcefully thrown out by the pressure generated by the electric motor. If there is no sprayer at home, then you can make a spray gun yourself, while simple models require only 15-20 minutes to manufacture.
To make a spray gun with your own hands, you need a spray gun and a little time
Spray gun manufacturing
You can assemble a spray gun for paint from available tools. Depending on the model you choose, you will need a plastic bottle or ballpoint pen, a vacuum cleaner, or an empty deodorant can. For various purposes, its own version of the spray is selected. Homemade work which uses its own breath, is suitable for painting small surfaces. To assemble a quality one with your own hands, you will have to use more complex models. Let's start making sprayers with simple designs, gradually complicating the process.
Option number 1: making an atomizer from a ballpoint pen
A hand spray gun from a regular pen is used to paint small parts. Spray quality depends on assembly accuracy. For this model you will need:
- Ballpoint pen and refill
- Container for paint - a bottle or glass jar with a wide neck will do
- Wine cork
- Syringe
- Glue, alcohol, toothpick
To assemble the spray gun with your own hands, you need to disassemble the ballpoint pen and cut off the tapered end of the body - this will increase the diameter of the hole. The paste is blown out of the rod with a syringe, then the tube is washed with alcohol. For this, the nozzle of the syringe is heated and expanded with a toothpick.
A corner is cut out of the wine cork - about a quarter. Drill holes of the same diameter as the rod in the center of the cork base and in the bottle cap. A hole is horizontally drilled perpendicular to this hole in the thin wall of the cork under the handle body. The empty stem and handle body are inserted into the holes and pulled out perpendicularly with minimal clearance.
The rod is inserted into the bottle cap, to which the cork is glued. The small spray gun is ready - now you just need to blow into the pen body to start spraying paint. The entire car cannot be repainted with such a device, but spot painting will be quick and economical.
"Mini spray guns for painting a car can be made using a wooden block, textolite, polystyrene and even plasticine instead of a wine cork, if nothing is at hand"
Option number 2: making a spray gun with a gun
To make the sprayer easier to hold, a gun is made. You can use regular plywood. A tube with a diameter of 4 mm bends in an L-shape. One end is connected to a vacuum cleaner, on the other, a thread is made for the machined one. In one piece of plywood in the form of a pistol, a recess is made for the tube, the second remains flat. This is how the handle is assembled.
A tube with a diameter of 2 mm is inserted into a glass container through an adapter. You can take a brass plug socket. A holder for the tank is cut out of sheet steel - a bracket with ears for attaching to a gun and a hole under the neck of the jar. Another homemade spray gun for painting a car is ready.
Option number 3: making a spray bottle from a plastic bottle
This hand held auto spray gun is made from a plastic bottle with the ability to pressurize air with a pump. It is necessary to prepare some parts and tools in advance:
- Plastic bottle with a volume of 0.5 liters or more
- Automotive nipple
- Old spray paint can
- Adhesive, auto-sealant
- Pump
You can make a spray gun at home from these materials as follows:
- Cut off the top of the spray can so that only the spray gun for the spray paint and the tube from it remains
- Make a hole in the bottle cap for a straw
- At a distance of 3 cm from the plug, burn a hole for the car nipple and insert it from the inside. Seal the hole with auto-sealant
- Pour in the strained paint, screw on the spray cap
A spray gun for painting a car with your own hands is ready. It remains only to connect it to the pump and pump air - it is enough to make 10 movements. When using a hand-held spray gun, filter the paint as thoroughly as possible to prevent the spray gun from clogging.
Option number 4: making a spray bottle from an aerosol can
There is nothing complicated in making a spray gun from a spray can with your own hands. The most important thing is to observe safety precautions.
Method A
You will need:
- Seamless deodorant can with protruding spray pin
- Syringe
- Vinyl tube with syringe tip diameter
A few simple manipulations will help you make a can of paint yourself:
- Remove the plastic top from the deodorant
- Place the vinyl tube on the syringe tip
- Cut the vinyl so that it fits halfway over the spray nozzle sticking out of the can - the valve should slide freely inside
- Refueling of paint into a can is made at the rate of no more than 1/2 of the aerosol volume
- Without removing the vinyl tube from the syringe, draw paint with it
- Place the can on a hard surface, put the free end of the vinyl on the valve, press it in with the syringe nose and pour in the liquid - this is how you can fill the can with paint the fastest, repeating the procedure several times
Now you need to create pressure inside the can, that is, pump air into it.
Before pumping air, be sure to place the cylinder in a bag made of dense fabric - in case of a rupture, all contents will remain in the bag, and your hands will not be injured.
No more than 3 atmospheres is pumped into the can. A protective tip from the syringe needle is used as an adapter. Pressing the valve into the can, you open the air from the compressor. If the process goes well, then the paint inside will begin to gurgle. As a last resort, you can pump air with a syringe, but this will take a long time.
It remains only to put on the button from the valve. To keep your hands clean when working, you can purchase a special nozzle - a gun for a spray paint.
Method B
If the spray can, which is selected for the spray, does not have a protruding valve, then you can fill the spray with paint with your own hands as follows. This will require:
- Ball pumping needle
- Fountain pen, peeled from paste (diameter 3 mm)
- Big syringe
- Paint can without spray pin
- Pump or compressor
To fill the aerosol can with your own hands, cut off 2 cm from the rod, put it on the needle to pump the ball - the device will be required to inject air into the balloon. Place a 3 cm piece from the rod on the syringe. Take the button from the can, remove the rubber seal from it, which stands in the place of spraying. Put the button back on the cylinder, insert the syringe with the pumped paint into the hole, press the button and force the paint into the cylinder. Insert a needle with an adapter from the rod into the same hole, press the button, pump air. Paint volume - 50%, air pressure - no more than 3 atmospheres.
Method C - making a reusable cartridge
To make a reusable spray bottle with your own hands from a can with the ability to quickly pump air, you will need the following tools and materials:
- Spray can of paint
- Automotive nipple
- Soldering iron, hammer, piece of wood
The essence of this design is to insert a nipple for air injection into the bottom of the can. You can make this type of paint spray at home as follows:
- Remove rubber from the nipple
- Tin the bottom of the can in the center and nipple
- Drill a hole with a nipple diameter in the bottom
- Carefully drive the nipple into the hole through the piece of wood so as not to damage the edge, solder it
- Pour the cleaning solvent into the cylinder, place it in a tight cloth bag, pump air through the nipple - no more than 3 atmospheres and test the spray
This is how a reusable paint can is made, which is used to apply coloring compositions.
Option number 5: making an atomizer with a compressor
It is very difficult to blow into the tube from under the handle for a long time to paint a car part. It is better to make an electric spray gun with your own hands with automatic air supply. A vacuum cleaner or a compressor from an old refrigerator is suitable for its manufacture.
Method A - using a vacuum cleaner
If a Soviet vacuum cleaner remains on the farm, then it already has the function of blowing air. You can make a do-it-yourself spray bottle from a vacuum cleaner like this:
- Remove the filters from the vacuum cleaner, thoroughly clean the dust
- Wrap the connections with tape to reduce air leakage and therefore keep the pressure constant
- Connect the blow hose to the spray gun
If the vacuum cleaner does not have a blowing function, then you can get it without touching the insides of the apparatus. To do this, take a thick plastic garbage bag the size of a vacuum cleaner, find another hose. You can make a spray gun with a compressor as follows:
- Take out the dust container
- Place a plastic bag over the vacuum cleaner and tape the edges of the bag tightly around the place where the hose comes out.
- Make a small hole in the opposite corner, insert the second hose into it, tightly wrap the junction with tape
- Make a hole for the wire, wrap it with tape
In such a vacuum cleaner, the native hose sucks in air, and the additional one blows it out.
Method B - using a compressor from the refrigerator
Since the operation of the compressor is intermittent, it will be necessary to manufacture a receiver. It will dampen pressure drops. You can make it from:
- Empty fire extinguisher with 5L volume
- Empty gas bottle
- Car wheel
- Two pipes, simultaneously serving as a stand for the compressor
Using the compressor from the refrigerator, you can make a high-quality spray gun Each of these receivers equalizes the air pressure and supplies it evenly to the spray gun. Consider how to make a receiver from a car wheel:
- Take a stamped tubeless wheel
- Install an extra nipple in it
- Connect the compressor through the nipple with nipple
- Route the hose to the sprayer through the nipple without a nipple
For painting a car with a compressor from the refrigerator and a receiver, it will help to paint individual parts of the car.
Optional accessories
When making a spray gun and working with it, you must observe safety precautions. For example, you can make a respirator yourself. The spray stand will also be very convenient.
Respirator manufacturing
To make a respirator at home, you will need the following materials:
- Large plastic bottle with flat bottom
- Plastic tube (5-6 cm) that can be slipped over the bottleneck
- A stopper with which you can plug the tube from the inside
- Cotton wool, gauze
- Activated carbon - 4 tablets
- Hot glue, scissors, lighter
Manufacturing steps:
- Cut a piece of 13-15 cm from the bottom of the bottle, drill a lot of holes in the bottom, make a curly cutout for the nose at the cut. Singe the edges with a lighter. Try on a design to make it comfortable
- Cut off the neck and two centimeters of the bottle from the top - this will be the cap for the bottom. Spread it around the diameter with glue and put it on the bottom with holes
- Insert cotton wool through the neck to close the holes
- Apply glue to the cork, insert it into the tube. When the glue is dry, drill more holes in the cork.
- Put folded cheesecloth on the inside, pour crushed 2 tablets of coal, cover with cotton wool. Add 2 more charcoal tablets, cover with folded gauze. Try how to breathe
- Place a tube with a filter on the neck of the bottle, glue
- Wrap all joints with electrical tape, make fastening rubber bands
Making a holder for a spray gun
The simplest do-it-yourself stand for a spray gun is made from a sheet of plywood 10 mm thick. A 25 * 25 cm square is cut out of it, in which a circle with a diameter slightly smaller than that of a container for paint is cut out. A gun is inserted into the groove cut from the edge of the workpiece to the hole. The stand is installed on the legs. Their height is selected so that there is room for the hose.
VIEW VIDEO INSTRUCTIONS
Sprayers for paint are made at home from a variety of improvised tools. The use of such tools is associated with a health risk, therefore, they must be made and used in compliance with safety measures. The quality of the result when painting often depends on the accuracy of the assembly of a particular model.