Primer walls and all for that matter
Do I need to prime the walls before the putty, the townsfolk think a lot about this before starting repairs. But this question is not for the masters, anyone will answer in the affirmative.
After all, the quality of the combination of two materials depends on this. How to make and how to apply a primer on the walls, we will consider today.
This material is abundant in retail. There are even compositions with the addition of clay, it is important to choose the right material. And after preparation, apply in a quality manner.
The content of the article
Types of primers
There are a lot of varieties of primers (seeTypes of construction primers and their scope) The composition of the primer for the walls is quite different.
In some cases, a primer for the walls can be made with your own hands. Just choose the right components.
They are divided by application material, chemical composition and properties. The most universal primers are emulsion and acrylic.
So:
- The scope of their application is quite diverse. The only drawback of this product is that it is neither suitable for metal surfaces, since there are no insulating chemical elements.
- Despite this, most of the assortment of primers is made on an emulsion basis. Make the right choice, in favor of a suitable primer is possible only by understanding its varieties. As an additional help, it is possible to consult with specialists on this issue.
- Ease of use, high performance, practicality and affordability are all acrylic and emulsion primers. Pure water can be used as a diluent; drying time is 3-4 hours.
Due to this, they are great for repairs in residential premises. There are several varieties according to the degree of penetration into the surface structure. It is from this indicator that the effectiveness of priming depends. - For processing wooden coatings (seePrimer wood - process features) exclusively alkyd primer is used. Preparing wood is a very complex process that requires a lot of time, so only this tool should be used.
This type of primer penetrates the entire structure of the tree, creating a protective framework. Drying time 10 - 15 hours. Application to mineral surfaces is strictly prohibited. - For priming concrete surfaces, epoxy and polyurethane enamels are excellent. The composition of these drugs is completely based on resins.
Excellent adhesion between particles, guarantees protection against destruction of cement and improves adhesion to paint. Also, a separate issue is protection from insects, since they very much destroy wood.
Attention: There are so-called shellac enamels that are excellent for removing resins from wood, the use of such products is minimized, since solvents are often used.
- Surfaces coated with plaster are perfectly primed with polystyrene enamels. Due to the high content of chemicals, the effect increases several times. The disadvantage is that when applied, a pungent, poisonous smell is released, which narrows the scope of its use.
- Universal primers are currently in great demand. Tools for metal coatings are divided into three main groups of insulating, phosphate and tread.
- First of all, the task of all three types is to improve adhesion to the exterior paint and prevent rust formation. As additional functions, the tread protect the metal from the passage of electric current, which is important in production.
- Their task also allows the use of metal products in aggressive environments. Phosphate in turn affects the increase in adhesion. Insulating primers are universal remedies.
What is applied
How to apply a primer on the walls, there are several options:
Primer roller for walls | How to prime the walls with a roller |
Atomizer | Why prime the walls with this unit. |
Brush | Many people wonder how to treat the walls with a deep penetration primer. |
Primer preparation
The walls are primed before painting or wallpapering. It also requires applying it before putty, especially before the finish.
Today, the technology of applying the soil layer practically does not change, since the result in any case is similar. The application of a preliminary layer guarantees surface cleaning, improved grip and so on.
Due to this property Decoration Materials mounted on walls with high quality.
It is worth noting the main tasks of this building material:
- Improving the adhesion of paint to the walls;
- Base reinforcement;
- Alignment of walls;
- Lower material costs
- Protection against the effects of fungi and mold.
For priming surfaces using special liquid-based building materials. Now on the market are available as ready-made primers in dry form.
The assortment is also represented by varieties according to the fastening material, that is, the surface on which the mixture will be applied.
Caution: Pay attention to additives that enhance certain properties. As a result, a huge assortment makes it possible to select the required type of primer, which will guarantee high quality work.
The tools used for priming should be divided into wall priming into several main groups. This is due to the fact that indoor and outdoor work requires a different approach. First of all, spatulas, brushes, containers, liquid, that is, water, and finally, building mixtures with additives will be required.
Primers for indoor and outdoor surfaces
Every professional that coating before painting should have good adhesion and is completely free from contamination. Applying a primer on the walls only after that.
You also need to think about how to choose a primer for walls, because a primer for concrete walls is different from a liquid on a tree.
So:
- In most cases, the primer is applied to the plaster (seeHow to plaster foam blocks according to technology) The main objective of such tools is to bond particles of matter to the surface to create a protective layer. Thanks to this layer, the amount of paint costs is reduced since it is not absorbed.
- A water-repellent barrier protects the walls from mold and mildew.
Attention: It is only possible to carry out priming work at temperatures above zero, since the water base will freeze. Before work, it is required to completely clean the walls of dirt, dust and grease using special equipment and tools.
- It should be noted that the plastered surface can be covered with a primer only after 3 to 4 weeks, since the entire layer of cement mortar must dry. Otherwise, the result will be negative.
- All work is carried out according to the method of use indicated on the container. Almost always one layer is applied, but with an increase in their quantity, the quality of the subsequent painting also improves.
All work is carried out only on clean and chilled surfaces. The instructions must be read and studied, the manufacturer may make changes to the application. - Currently, the market for building mixtures and materials is filled with various types of primers. Choosing the right tool can be based on several factors, but these are only professionals involved. For your own needs, it is best to use universal drugs.
The choice of primer for the walls is done by their types, here are the main options.
Firming impregnation | The basis of these funds consists of an aqueous dispersion medium with additional substances in the form of resins. They protect the surface from high humidity, the influence of temperature changes and so on. Great for indoor work indoors. Today they make up a large part of the entire range of goods of this type. Thanks to the creation of a vapor-permeable film, it does not trap moisture coming out of the walls and does not pass it inside. Prevents the formation of fungi and mold. |
Acrylic and latex impregnation | Penetrate the surface structure, protecting it from destruction. Excellent grip with subsequent decorative paint. |
Solvent based paints | These are the most unsafe soil materials, since the presence of flammable components can lead to fire. As a result, they are used only in well-ventilated areas, and more often in the open air. They are universal means for priming wood, metal, concrete and other materials. Currently in great demand, as they perfectly clean dirt and greasy spots. |
Acrylic Varnishes | This is a separate type of primer that creates an impenetrable barrier to various environments, such as moisture. As a result, they are excellent for processing building facades. The dust particles that are present on the walls are excellently cleaned through thorough processing. |
Silicate materials | Water-based silicate products are excellent for priming various types of bricks, concrete and plasters.
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Epoxy two-component paints are in special demand. The implementation of these building materials is carried out in a separate container.
Before use, they are thoroughly mixed in certain proportions. As a result, the mixture has high adhesion to plaster and brick.
Currently, these types of primers are less popular among construction organizations.
Note: It is worth noting that mixing the remnants of various primers is strictly prohibited. The different composition and presence of chemicals can lead to poor primer, and in most cases to the destruction of the outer surface of the plaster. Therefore, subsequent losses should be estimated with initial costs.
Priming wooden surfaces
The main purpose of such work is to protect the surface from premature aging and to protect it from pests, moisture and mold.
So:
- The applied mixtures are absorbed into the wood, thereby creating a layer that does not allow air and liquids to pass through.
- The primer also strengthens the structure of soft materials.
- It is worth noting that the coating with primer materials is also aesthetic in nature, as the background is lightened. With further varnishing, such surfaces look pretty pretty.
Attention: The preliminary stage before the main work is the application of a primer, in the first place - this applies to fresh wood.
- Wood preparation begins with the removal of all excess contaminants, knots and resin from the surface. To do this, you need a knife and a spatula.
- The resin that can spoil the primer is carefully removed. You can also use an industrial dryer to melt the resin inside the board, later it will come out that will make it possible to completely remove it from the composition.
- After that, the surface is sanded with special paper, and once again treated with a solvent in order to degrease and wipe the dust. Perhaps the use of shellac or special preparations that guarantee protection against the flow of resin.
- Preparation of wood for priming ends after processing with special solvents.
- After neither mechanical contaminants nor particles of resin remain, layers are applied.
And now, how to make a primer for walls on wood with your own hands. Preparation of mortar is based on the use of drying oil or extraction gasoline in ratios of 50 to 50.
After all priming work is carried out exactly one day later, they start painting.
Wood Primers
And now, how to primer the walls of wood. There is a choice here. Before buying, you should look at the primer on the wall primer, this is if the room is not yours, but is intended for commercial use.
Drying oil | One of the most common products, perfectly penetrates the structure of the tree and protects against moisture. It is used both indoors and outdoors. |
Acrylic paints | Used as a pre-coat before applying paint. As the material for the preparation of the solution using water. |
Alkyd | These primers are used exclusively before using paint on the same basis. |
Styrene enamels | They have a special structure that forms a protective film on the surface of the wood. As a result, the tree does not lose its structure and has protection against mold. Used before applying alkyd paints. |
Nitrocellulose varnishes | They have primer properties and are applied to the floor covering. Prevents abrasion, aging and gives a darkish tint to the parquet. |
Phthalic, oil paints | They are universal means, as they are applied to various surfaces. It should be noted that before application, the tree should be treated with linseed oil. |
Metal priming
First of all, the technology of coating metal surfaces with paints and enamels consists in protecting them from premature corrosion. Also, despite the fact that metal surfaces are best suited to hold exterior paints, a primer is still required to increase this ratio.
What to apply the primer to the walls you will pick up, but now how to primer the walls of metal, now we will understand.
Note: The economic side in this procedure is that the cost of using paint is reduced.
So:
- Preparation of the surface before priming begins with cleaning it from rust, dust and mechanical impurities. Any metal sooner or later begins to become covered with a coating of corrosion, therefore this procedure cannot be excluded. Further, degreasing using a solvent or other chemicals.
- In the event that the metal is coated with paint, it should be carefully wound, that is, create small furrows to improve fastening. If the paint is already in poor condition, it is removed.
This will require specialized equipment. Preparation of the soil mixture begins with mixing the desired consistency.
Next, several layers of coating are applied with a brush.It is worth noting that you must observe the interval between the layers for about several hours.
Drying of the coating depends on its structure and composition. In some cases, the period is 72 hours.
Preparations used for metal coatings are divided into several main groups:
Alkyd Enamels | Used to protect the surface from various corrosive reactions. When applied, a layer is formed that does not allow air and moisture to pass to the metal, which creates complete protection against rust. This material is the basis of the primer. It is worth noting that in some cases the use of alkyd enamel does not require preliminary surface preparation. |
Polivinilovo | Acrylic enamels are used for priming surfaces of non-ferrous metals, galvanizing. It also performs a single function - corrosion protection. Before use, the surface should be treated with a special grinding machine. |
Vinyl and polyvinyl paints | They are used for heavier structures made of cast iron. It is used as a preliminary coat before application of the paint, which guarantees adhesion at a high level. |
Nitrocellulose paints | apply only in conjunction with exterior paints of the same type. It is used for applying to various types of metal coatings. Due to its chemical properties, the nitro group binds metal particles, creating a protective layer on the surface. Also, when applied, the fixing of finishing materials improves. |
Chlorinated rubber paints | Called for metals such as steel and cast iron. Protects against corrosion and improves adhesion of external paints. As additional substances, it is possible to use rust stabilizers. This drug has a specific composition that penetrates almost the entire surface structure, creating a protective frame. It mixes well with other types of primers and paints. |
Attention: It is worth noting that before applying the above enamels and paints, it is possible to use anticorrosion paints based on phthalic resins. This technology will increase the effect of exposure. The functions of this material are similar to other enamels.
Primer for plastic surfaces
The only minus of plastic is its smooth surface, such a structure does not guarantee reliable application of paint.
As a result, it is worth choosing special primers to create a preliminary layer:
- As the main preparations, one can distinguish alkyd-based paints and two-component epoxy varnishes. They are used as a primer, which is applied to tiles, glass, plastic or ceramics. The main properties are improved adhesion to the surface.
- Thanks to such an abundance of goods, a professional builder and a simple layman can easily carry out repair work of the highest quality. The quality of the primer carried out guarantees the safety of subsequent applied layers of paint or finishing materials.
- Today, manufacturers have created a huge range of products, from which you can choose anything. The construction industry, and in particular the finishing work, has changed dramatically over the past 50 years, as many developments in the field of mixtures and solutions have appeared.
Making the primer yourself
Now consider how to make a primer for the walls yourself. Yes, this topic has a lot of photos and videos. But not everyone knows how to make a primer for walls.
Let's look at what the primer for walls consists of and why it is needed in general and how to primer the walls with glue. In principle, any dye can be used as a primer.
If you take the wallpaper gluing, then the glue you are gluing the wallpaper on is simply applied:
- We take it with it and just dilute it with water. Only until completely liquid.
- Apply liquid to the surface.
And do not think about how much the primer dries on the walls, it will be much faster than the attached material. You don’t even have to think about whether it is necessary to primer before filling the walls, just take and primer. After all, a very small amount is spent on sq. M, but the issue price is quality and it will be on top.