Tip 1: How to prime cardboard
Tip 1: How to prime cardboard
The quality of the soil is essential forpainting: durable and elastic, it allows the artist not only to work with pleasure, but also preserves his work for many years. To properly primed cardboard, it is important to take into account its properties and the specifics of the soil.
You will need
- - cardboard;
- - Joiner's glue;
- - oil white / chalk;
- - sandpaper;
- - PVA glue;
- - bristle flute / hard brush.
Instructions
1
Choose the right one for your work cardboard. For further priming, it is important to choose a method that takes into account the quality of the material. It directly depends on the components of which the cardboard. For example, lviv beauty salons cardboard gray color has good elasticity anddensity, while woody is usually white or yellowish in color, and it is enough lomok. Please note that under the influence of sunlight gray cardboard fades, and white turns yellow. Therefore when priming use white and chalk. Usually artists choose the best sorts of rag or wood cardboardand a thickness of about 3-5 mm. He does not rot and does not crack.
2
Be sure to provide the appropriate qualityof the soil. A primer is the first layer of a coating that is applied to a material intended for painting and is placed directly under a layer of paint. Durable and elastic, it closes the pores cardboarda, gives a uniform density and slightlyrough surface, which, in turn, provides optimal adhesion to the paint layer of the picture. So it will be better preserved, will be resistant to the environment.
3
To prime the sheets of fine wood cardboardAnd, use joinery glue. Many artists ground cardboard independently, using those types of soil that are applied on the canvas. For example, soak up cardboard cooked butter (linseed oil) and allow the leaf to dry out2-3 weeks. Then cover in one or two layers of oil whitewash and dry well. Lightly sand the surface with sandpaper. Treated in this way cardboard It does not crumple, it is pleasant to work on it, the paints fall flat and do not fade with time.
4
Try priming cardboard emulsion PVA, which should be prepared from glue and water in a proportion of 1:10 or 1:15. Glue the front surface cardboardand once or twice, dry it, and thenprimsonte. The priming weight includes 1 part by weight of PVA, 2 - 4 parts by weight of water, 3/4 by weight of dry zinc white and 3/4 by weight of chalk. Apply it on cardboard once with an even layer, using a bristle flute or a rigid brush. Allow the soil to dry well for 1-2 days. Then cover your cardboardsecond layer, for preparationwhich you will need: 1 part by weight gelatin; 15-17 parts by weight of water; 0,4 weight part of PVA; 2 parts by weight of dry zinc white; 2 parts by weight of chalk. And also need to buy an antiseptic - sodium pentachlorophenolate, which is in a mixture of 0.01 parts by weight. This mass is also prepared when priming the canvas.
5
To cardboard Do not jam, primed it on two sides. The back side is often covered with a thin layer of natural beeswax, which is previously dissolved in turpentine at a temperature of 40-50 ° C. Such a wax solution is applied by a flute. It can be primed with an aqueous solution of PVA glue in the ratio 1:10.
Tip 2: How to make a feeder from a cardboard
With the onset of cold weather, birds that do not fly awayto the south, are forced to seek food in the harsh winter conditions. To the aid of birds, people often make their feeding troughs. The children of primary school age are the most involved in this. After all, the process of making a feeder does not require special physical effort, it develops creative thinking and brings up in children a feeling of compassion and mutual assistance. Feeding trough can be made from any improvised materials. It is necessary to elaborate on cardboard, since it will be found in every house.
You will need
- - cardboard box;
- - Stapler;
- - glue;
- - colored cardboard;
- - scissors;
- - wire.
Instructions
1
Cardboard for your feeder you can get,for example, using a box of dairy products. The first thing you need to trim the side edges at the top of the box, on which manufacturers usually write "push". The other edges you must connect with a glue or a stapler. But you need to consider that the glue should not be very liquid, so that it does not spread over the inside of the box. Therefore, it is better to staple the edges with a stapler.
2
Next, you need to bend the top of the box so that it has a pyramidal shape. The bent part you must again be stapled with a stapler, so that the top base does not lose the desired shape.
3
The next thing you need to do isCut a hole in the front of the box with a stationery knife or scissors. It is more preferable, of course, to choose a knife, since it is much more convenient for them to work.
4
Then you need to make a through hole in the bottom of the box. In this hole you will insert a roost to make it easier for birds to sit, and the feeder does not turn over.
5
The main design you harvested. Now you can proceed with the design to make the feeder look more presentable. Cut four strips of colored cardboard. They must glue a carved hole where the birds will fly.
6
Also from the same cardboard Cut a rectangle that will serve as a roof for the feeder. Glue the cut out blank in its place.
7
Next you need to glue the side walls. You can do this using the same cardboard.
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The feeder is ready. It remains only to make a fastener to hang it on a tree branch. To do this, at the very top you need to make two holes and stretch a wire or a thin rope in them.
Tip 3: How to prime the machine
The priming of the car is, of course, veryAn important process, which can not do without body repair. A primer is applied to ensure that the paintwork materials lie better on the metal surface. In addition, the soil protects well the car from rust. To make a primer yourself, you need to be patient and with the necessary tools.
You will need
- - a spray gun (a puller-pistol);
- - sandpaper;
- - rags;
- - solvent;
- - putty;
- - spring trowels;
- - soil container;
- - hardener.
Instructions
1
Before you start, put on the car bodyrags soaked in a solvent (650), and wait 20 seconds. If there are no wrinkles on the surface, then you can go to the primer, but if they are - the car needs to be cleaned of the old paint. Remove it with sandpaper 180, and when the metal appears, sandpaper 240.
2
After that, wipe the surface of the body from dust,degrease, where necessary - paddle. Take a spring trowel and apply putty across the defect, and then align along. Wait until the putty dries, and then rub it with sandpaper 180 or 240. Check the surface of the body again for scratches and unevenness. If any, remove them with sandpaper. Now you can go directly to the primer.
3
Pour the soil into a prepared container andmix it with a clean stick. Next, mix it with the solvent and hardener, according to the proportions indicated on the package. The resulting mixture also mix, but already another stick.
4
The prepared primer is poured into the spray gun andadjust the power of the torch. To carry out the priming of the machine, there will be enough pressure in 3-4 atmospheres. Before priming the car, be sure to practice on some surface (wall, plywood). When you see that the soil is lying flat, you can go to the car.
5
Start from the edge and hold the gun at an angle45-60 degrees to the side where there is no soil. Prime with parallel strips so that they overlap each other halfway. After the end of the primer, wait for 15 minutes until it dries, and if necessary, you can apply the same pattern to the second layer, which will go perpendicular to the first. Now the body is ready for painting.
Tip 4: How and what to primer a canvas
Qualitatively primed canvas - a guarantee of preservation of brightness of paints and durability of a cloth. With the self-priming of the canvas, the artist creates the ideal basis for the future painting.
Preparatory stage
Before proceeding to priming the canvas,It must be pulled on a stretcher and secured with a construction stapler or furniture nails. Cloth should be tight and not sag. Experienced masters pull the canvas wet, for additional tension of the canvas. Before applying the primer, the canvas must be glued. Glue will prevent the manifestations of soil and paints on the reverse side of the canvas. For initial processing, PVA glue is suitable. If the web is of large mating, then the glue should be applied with a thick layer with a rubber spatula or palette knife. More dense canvas (tarpaulin, canvas) can be processed with a homemade homemade paste. For this purpose, conventional starch is suitable. In the pot with water, so much starch is poured in order to get a viscous mass, and cook until transparency is achieved. Pasta from starch is applied using a wide flute brush or a clothing brush. After complete drying, the adhesive base must be sanded. Use fine-grained sandpaper.Compositions for priming canvas
Priming the canvas to save paint consumption, forfacilitate the sliding of the brush and to give the canvas a uniform color. Most often primed canvases in white. However, if the artist plans to paint a picture with a predominantly dark background - he can add color pigments to the ground and get a canvas of any color. Adhesive primer absorbs the paint sufficiently, the smears will be more light and matte. Glutinous soil is prepared from one part of gelatin, four parts of chalk or white and 15 parts of water. Gelatin is soaked and boiled in a water bath, white or chalk is pre-dissolved in water and injected into the glue, then a few drops of castor oil are added as a plasticizer. Emulsion primer is considered the most practical. The first stage of preparation of emulsion soil is the same as for the adhesive composition. Then a highly purified linseed oil or flaxseed oil and a few drops of antiseptic (phenol) are added to the solution. It is necessary to pour oil in small portions and stir the solution intensively. A sign of a quality emulsion is the uniformity of the composition: the oil must not separate and float. The oil primer is obtained with the use of special oil-based whitewash. After applying several layers of whitewash, the canvas is held for one and a half years to secure the layer.Priming rules
Apply a soil composition should be a thin layer. The emulsion and glue primer is applied with a wide brush, oil - with a thin spatula. Movements must be along and across the direction of the strands of the canvas. It is necessary to dry the primed canvas naturally and in well ventilated rooms. You can not turn the canvas to the sun or the battery.Tip 5: Toy furniture made of cardboard: fast and cheap
Chinese manufacturers offer todaytoys for every taste and purse. But you can remember your own childhood, when imagination helped turn a cardboard box into a magical castle, and a dolly pupa into a princess. Why not develop the child's imagination by teaching him how to make simple crafts for the game? For example, most of the furniture for a doll house is easy to make for a couple of evenings. And there, you see, the baby is already self-assemble and a new dwelling for the pups, showing fiction and ingenuity.
You will need
- - corrugated cardboard;
- - scissors and a writing-knife;
- - glue stick;
- - gouache or acrylic;
- - felt;
- - Self-adhesive film for wood.
Instructions
1
Pick up pieces of corrugated cardboard. The best thick-walled boxes from large machinery are suitable for crafting. The thicker the cardboard - the faster it will be possible to assemble the furniture.
2
Based on the size of the dolls, draw on the paper the silhouettes of the future furniture. Note that the legs should not be too thin, otherwise the details will be harder to cut.
3
Transfer the contours of the parts to the cardboard so thatall of them were located in one direction. Using a clerical knife and ruler, cut out the elements and glue them in several layers. The number of layers depends on the thickness of the cardboard. Use a glue stick, as liquid adhesive can lead to deformation of the structure. Press down each layer so that the cardboard fits well.
4
Allow the collected furniture to dry and gently trim the edges with a clerical knife.
5
You can decorate the resulting toys in many ways. The easiest way is to paint them with gouache or acrylic, using a wide brush and making sure that the paint gets into all the grooves.
6
For puffin, you can sew a cover made of felt or other non-sagging fabric. Draw a scan of the cube without one side, sew the sides with a seam "over the edge", turn out and pull the cover on the cardboard base.
7
The chair will become more elegant if the backrest and seatstick a strip of cloth. It is more convenient for this purpose to use an adhesive gun or glue such as "Moment-Crystal". On the remaining parts, attach the self-adhesive film, turning the slices into the structure.
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This technology makes it easy to make beds,chairs, benches and other furniture. By the way, by increasing the scale and obtaining enough sheets of cardboard of a large size, you can make furniture of human dimensions. Of course, in this case you need beautiful cases, but it will be easy and cheap.