How to prime wood before painting? Is this operation always necessary? Is any other preparatory work needed before applying paint? Let's try to answer these questions.

Why is this necessary?

First, let's find out why you need a primer for wood before painting.

• For disinfection. Cheap (and therefore popular) types of wood are susceptible to rotting. It is promoted by high atmospheric humidity, the appearance of condensation, water leaks and other minor household troubles.

Antiseptic impregnation can prevent the appearance of mold, which rapidly destroys organic fiber.

Useful: if the fungus has already started, you can use any chlorine-containing solution for initial disinfection. detergent. “Belizna”, the price of which is approximately 20 rubles per liter, is quite suitable for this purpose. However, only specialized antiseptic impregnation can provide long-term protection.

• To strengthen the surface. First of all, this applies to old, drying wood. The resins contained in the soil penetrate between the fibers and glue them together, preventing accelerated destruction of the material.
• To reduce the absorbent properties of wood. Structurally, wood resembles a sponge: the same abundance of large pores in a relatively small volume solid. When applying any coating, most of the first layer will be uselessly absorbed into the pores - provided that they are not filled with a primer.

• Finally, wood primer for painting acts as a protective and separating layer. Unclear? Let's try to explain.

We're getting a little ahead of ourselves; However, we note that the paint can be applied to an old coating of the same type without first cleaning the surface. Acrylic over acrylic paint, oil over oil paint, and so on.

However, differences in color may cause the old coating to show through due to the fact that it partially dissolves when applied new paint. A primer of the appropriate type will act as a separator that will prevent the paints from mixing ().

In addition: wood contains tannin, a natural dye that often bleeds through water-dispersed coatings in untidy spots. The primer traps it inside the wood.

Types of primers

What types of primers are there for wood before painting?

Functionality

Antiseptic primers provide antibacterial protection. They kill microorganisms that have already settled in the wood and create an environment that prevents their further reproduction. Antiseptics, as a rule, also prevent the appearance of wood-eating insects; many contain fire retardant (fire retardant) additives.

Strengthening (primers, or deep penetration primers) serve, as can be easily concluded from the category name, to increase mechanical strength grounds. Most primers of this type are universal: compositions intended for brick and plastered surfaces are perfect for wood, plywood, hardboard and chipboard.

Finally, hydrophobic primers are needed to protect wood from excess humidity. They are used primarily for wooden facades.

Compound

The choice of primer composition is determined by what type of paint is intended to be used.

• Penetrating soils based acrylic resins most versatile. They are used under any type of paint, since they are almost completely absorbed into the wood, without leaving a film on its surface with the possibility of subsequent delamination.

• Silicone-acrylic primers characterized by pronounced water-repellent properties. After their application, the moisture content of the wood is stabilized and practically does not change with fluctuations in atmospheric humidity. It is clear that for complete protection from dampness, a water-repellent primer is applied over the entire surface of each element of a wooden structure.
• Alkyd primers are used, respectively, for painting alkyd enamels(PF-115 and its imported analogues). In essence, primers of this type are identical in composition to enamels, but contain a larger amount of solvent, dry faster and contain the cheapest possible pigments.

In addition: primers make the surface rough after drying. Thanks to this feature, the adhesion of the paint to the base is made more reliable.

• Polyurethane primers They are relatively expensive and are intended for preparing wood for coating with parquet varnishes based on polyurethane synthetic resins. As in the case of alkyd primers, they differ from varnish only in the large amount of solvent and the absence of tinting additives.
• Drying oil is traditionally used as a primer for oil paints. By impregnating the wood to a depth of several millimeters, it not only ensures the most reliable adhesion of the paint to the base, but also protects the wood from dampness and rotting.

Preparing a wooden surface for painting

We found out how to prime wood before painting. How can you completely prepare a wooden surface for painting with your own hands?

Over old paint

If the type of old paint matches that which is intended to be used, complete stripping of the coating is not required. Oil, alkyd or nitro enamel is sanded with sandpaper or a sanding mesh to obtain a rough surface; peeled areas of the coating are removed with a spatula and thoroughly sanded.

If the color does not match, as already mentioned, apply separation layer primers of the appropriate type. You can paint it after it has completely dried.

If the old coating has a different composition from the new one (for example, instead of oil paint wooden lining is supposed to be painted with water-dispersion acrylic paint), the coating is heated with a construction hairdryer and removed with a hard one.

Remains of paint are removed with solvent. Then the base is primed - first with an antiseptic, then with a suitable primer for painting.

The photo shows stripping the paint with a hairdryer and spatula.

Tip: Many all-purpose penetrating primers already contain antiseptic additives. In addition, a concentrated antiseptic can be independently added to water-based soil.

On fresh wood

Here, the instructions for preparing the surface are relatively simple.

1. The base is sanded or scraped.
2. Defects and cracks are filled. This type of putty is quite elastic and does not crack when vibrations occur. linear dimensions wood
3. The surface is swept away from dust and primed. As a rule, a wide brush or spray is used on wooden surfaces; penetrating soils on acrylic base For better impregnation, apply twice.

As usual, the video in this article will offer the reader Additional information. Good luck!

Wood is a naturally occurring material with high porosity and a large number of natural enemies. Mold, algae, fungi, and insect pests quickly render wooden buildings unusable if they are not properly protected.

Adverse weather conditions - precipitation, temperature changes, sun and wind also negatively affect wooden building. The most loaded structures especially need protection - the base, window and door frames, and the overhang of the cornice.

A primer for wood reduces the porosity of the material, reduces the absorption of compounds, protects against pests of all types, reduces the influence of precipitation, impregnation with a fire retardant increases resistance to fire.

Primers for various purposes can be transparent, matte with high coverage, or revealing the structure of the wood. Opaque compounds are often tinted to match the color of the topcoat to obtain a more uniform color.

By chemical composition wood primer for exterior painting is made on the basis of:

• acrylic resins;
• alkyd resins;
• silicone acrylic;
• shellac;
• epoxy resins.

Let us consider the properties of primer compositions in more detail.

Acrylic based

An acrylic-based primer successfully protects wood from mold, bark beetles and discoloration. It is resistant to UV radiation, temperature changes, dries quickly and has no unpleasant odor, it is applied in 2–3 layers.

This wood primer is especially suitable for painting with acrylic paint, but can also be used for other types of painting. Acrylic primers are low cost, effective, environmentally friendly and harmless to humans.

Based on alkyd resins

Alkyd primer is used for painting alkyd paints and enamels, creating a water-repellent layer on the surface. Alkyd primer is an ideal coating for previously painted surfaces.

The alkyd composition can be diluted with water, it is an economy class primer with a service life of 3–5 years, the disadvantage is that it takes a long time to dry, each layer takes from 10 to 18 hours, and has an unpleasant specific odor.

Silicone acrylic primers

Silicone-acrylic compounds are one of the most durable and effective, they penetrate deeply into the pores of wood, strengthening and protecting against absorption of atmospheric moisture and sunlight, resistant to all negative factors, harmless, but expensive. They are used for painting with latex, alkyd, silicone and water-based varnishes, azures and paints.

Shellac

Shellac primer is used for knotty coniferous wood in order to neutralize the natural resin released through the knots, and to isolate a layer of water-soluble stains. Shellac levels the surface of the wood, thanks to which the finishing paint layer applies easily and reduces paint consumption.

Epoxy

Two-component primer for wood for painting based on epoxy resin forms on the surface of the wood protective film, resistant to abrasion, mechanical damage and weather conditions. The primer is expensive and is more often used indoors for furniture or parquet.

By functional features

On the market construction chemicals offer primers different composition and destinations, both from famous brands and little-known manufacturers. Functionally, wood primer before painting is divided into the following types:

• anti-corrosion, protecting against cracking, drying out, and falling out of knots;
• antiseptics that prevent biological damage;
• hydrophobic, preventing the absorption of moisture;
• flame retardants that increase the degree of fire resistance;
• universal formulations containing all previous components.

There are surface protection formulations and deep penetration formulations that provide long-term protection, best manufacturers They promise the effectiveness of the composition for up to 25 years.

Anti-corrosion and antiseptic primers

Anti-corrosion and antiseptic primers protect the wood structure from cracking and other types of corrosion; the presence of fungicides in the composition guarantees protection against pests, fungi, and mold. They are also used on old paint coatings to harden the surface.

Deep penetration

The main advantage of deep penetration primers is long-term protection and reduced consumption of finishing paint material, that is, direct savings.

If it contains linseed oil, such a primer will protect against moisture and protect against pest damage. Deep penetration primers protect wood from fading, and therefore require paint or varnish with a UV filter.

It is especially important to use deep penetration compounds on hard surfaces. wood materials artificial origin - chipboard, fiberboard, OSB, plywood.

Primer with varnish

Compositions that simultaneously protect wood and form a varnish finishing layer on the surface, more often used for processing wood materials indoors. Unfortunately, a two-component composition is always inferior to two one-component ones in terms of the quality of protective properties.

Product with waterproofing properties

Waterproofing (or water-repellent) compounds are used for wood exposed to atmospheric conditions or high humidity, for example, in baths and saunas. They form a film on the surface that prevents moisture absorption.

Universal primers

universal primer compositions have all the properties listed above and are used when quick processing is necessary, but their effectiveness is lower than specialized compositions.

Average cost and where to buy

The cost of primers depends on many components:

• chemical composition;
• appointments;
• validity period;
• hiding power;
• manufacturer.

Of course, the cost of acrylic primer domestic manufacturer with a working life of 5 years will be significantly lower than the cost of primer based on epoxy resin from a world-famous foreign brand.

And yet, despite the high cost, you need to purchase products from companies that have been proven for at least 10 years of producing quality products and specialize in construction chemicals:

• Tikkurila (Finland);
• Pinotex (Estonia);
• Biofa (Germany);
• Belinka (Slovenia);
• Unibud (Belarus);
• Neomid (RF).

The average price is 300 rubles. per liter

The best choice is to purchase both primer and topcoat from the same manufacturer. official dealer or in the representative office of the company, this guarantees compatibility and better job different layers.

Application technology

Applying a primer to an exterior wood surface is not difficult, but it will require preparatory work, the composition of which depends on the time of construction - it is a new building or a house with history, repeatedly painted in the past.

Over old paint

Before priming, it is necessary to remove the old paint layer and assess the condition of the wood. When peeling old paint, remove it with a spatula and heat it with a hair dryer.

• In case of damage by pests or disease, remove the damage and fill the uneven areas with putty.
• Check the tightness of the seams between the crowns and, if necessary, re-caulk the seams.
• The walls are being sanded.
• Dust the surface with a vacuum cleaner or a damp cloth or sponge, and wash off oil stains.
• Dry the surface.
• Paint it.

Painting is carried out in dry, windless weather, preferably without sun, at temperatures from +5 to +30°C. For priming, you can use a brush, roller or. Don't forget a set of protective clothing and equipment personal protection- glasses, respirator, gloves.

Solutions ready for use are mixed, concentrates are diluted according to the manufacturer’s recommendations.

Apply the primer using hand movements from top to bottom or from left to right, as convenient, in the direction from the eaves to the base. For large areas it is more convenient to use a spray bottle; it can be rented to minimize costs, for small areas flute is more convenient.

The primer is applied in 2–3 layers, according to the manufacturer’s instructions, over the dried previous layer. When using several compositions, they start sequentially with a fire retardant, then an antiseptic, and the last one is to apply primer under the finishing paint.

There are several types of primer that can be applied over the old paint layer if it has not lost bearing capacity and does not peel off, and the surface of the walls is healthy and without defects.

On fresh wood

Fresh wood is treated at logging sites with temporary compounds with a validity period of about six months. Even if you purchased primed wood, protecting the surface before finishing- necessity.

• The walls of a new building must be scraped or sanded.
• Check the tightness of the seams and smooth out the defects with acrylic putty.
• The walls are dusted.
• Apply sequentially 2-3 layers of fire retardant, antiseptic, and primer tinted to match the color of the finish coat for adhesion.
• Watch a video about priming wooden walls.

Conclusion

Appearance wooden house will largely depend on the quality of the preparatory work and application of the primer. Priming the walls before painting means protecting the wood from destruction for a long time and making your home durable.

When working with wood, do not forget about the mandatory preparatory measures. Walls, floors and other surfaces in a wooden room cannot be painted with acrylic paint, varnished or even wallpapered without proper preparation. This is why wood primer was invented.

Wood priming procedure

Wood care products are constantly being improved, and today there is a considerable range of primers.

Types of primers and scope of application:

• Water-based products.

The mixtures dissolve and protect the material from corrosion of biological origin.

• Primers are waterproof.

Used to protect against moisture. Usually used for outdoor work.

• Oily.

This type is suitable for already painted wood or as an impregnation when one layer of the product is applied.

• Acrylic.

Acrylic based primer

This option is used before coating with acrylic paints. It is applied in two or three layers under paint, although varnish can also be applied on top.

• Alkyd.

The best option for wood without treatment. The product levels the surface for further finishing. They are also pigmented. Such mixtures create a matte film on the base. high density, enhance the shade of the paint. Alkyd primers dry in 12-16 hours.

• Shellac.

Designed to neutralize coniferous resin protruding to the top of wood or used as insulation under soluble stains.

• Polyurethane or epoxy.

These products are not quite primers, but not paints either. They are paint diluted with a solvent.

Purpose of primers

This functional material has different purposes, depending on which the properties of the funds change.

Purpose of the primer:

• Neutralization of resins.

If softwood lumber was used, then resin appears on the wood near the locations of the knots. To prevent it from harming further processing and decoration work, the wood is primed.

• Leveling the surface tone.

A primer can neutralize small defects, eliminate cracks and smooth out roughness.

Priming to smooth the base

• Waterproofing.

The product protects the tree from the effects of external harmful factors: moisture, insects.

• Preparation for painting.

To apply varnish to wood or decorative coating the base is prepared for better adhesion decorative material with a base. An acrylic-based wood primer, as already mentioned, is an ideal basis for finishing paint with a product based on the same acrylic.

In addition to standard substances, primers are also available on the market today. special purpose: for exterior or interior painting, for rooms with high humidity, against wood blue, base for parquet varnish.

Priming wood increases its performance properties and saves the consumption of finishing coatings due to increased adhesive properties.

Criteria for a profitable choice

To prevent the applied varnish or paint from peeling off after a couple of days, choose and use the correct primer. The criteria by which primer mixtures are selected are described below.

Use a clear product. A transparent primer will highlight the beauty of the wood texture and will not limit decorative possibilities. The resulting film “smoothes” the wood pile, eliminating the need for sanding.

Among the transparent mixtures, rosin-casein and nitrocellulose mixtures are distinguished, which protect against fungus and mold thanks to a number of useful components: pigments, adhesives, oils, resins, etc.

Any primer must contain an antiseptic to protect the coating from insect attacks.

Acrylic primer will probably become best choice due to its versatility. This primer does not have an unpleasant odor, the composition dries quickly and is diluted warm water. This primer is environmentally friendly, which allows it to be used in any room, even in children's rooms.

What kind of wood is primed?

If at interior work ah, painting is provided, then under decorative paints or wood varnish, apply a layer of primer. In other cases, simple impregnation is sufficient. But there are cases when priming is indispensable.

For example, when wooden structure is located outdoors. This is due to the fact that the influence of changes in temperature or humidity levels is felt here, and infestation by mold and insects is likely. You cannot do without a primer in unheated or damp rooms. Also, they won’t do without priming. interior walls, which are in contact with external ones.

Preparing for painting

Priming is preceded by a thorough preparatory stage.

Preparation and priming steps:

• Degreasing.

If the material is painted, the old coating is removed. The exception is colorants of the same type as the new coating. That is, acrylic paint can be used to cover old paint, if made on the basis of acrylic. But for this it is important that old layer was durable and did not delaminate.

For degreasing, use turpentine, acetone or universal removers. The first two products are applied with a rag 3-4 times. The resin pockets are filled with the selected solvent and blotted with a swab. Removers are used when it is necessary to remove old coating.

• Application of antiseptic.

To prevent the tree from rotting over time and becoming an abode of woodworms, the material is coated with an antiseptic primer once using a roller or a wide construction brush.

Often such mixtures contain flame retardant additives, which increase the fire resistance of the coating.

• Puttying.

At this stage, they get rid of cracks and minor defects, hide seams and recesses from cutting into self-tapping screws, so that the varnish and other decorative means adhere better. When painting, it is recommended to give preference to acrylic products, which are more elastic. The composition is applied in two stages, since acrylic product will shrink after drying.

If you plan to apply a transparent varnish to the base, then for puttying it is better to create your own composition from sawdust and PVA. This product is transparent and will not shrink after drying.

• Grinding.

The procedure is performed after puttying. Movement is allowed only in the direction of growth of wood fibers. To do this, use sandpaper or a belt sander.

• Treatment with penetrating primer.

This layer is designed to increase the strength of the material, increase its adhesive properties and reduce paint consumption.

Rules for priming wood base for painting with acrylic

Even if you choose a high-quality primer, you will not get the desired effect if you do not adhere to the rules for applying the product.

Application rules:

• The suspension is applied at temperatures from +5 to +30 °C. If this rule is not followed, the drying rate will change, and the product will not saturate the surface sufficiently.
• For chipboard materials, it is recommended to purchase a deep penetration primer mixture.

• Wait at least 2-3 hours between each primer layer. This will reduce consumption. Although with more frequent staining, the impregnation penetrates deeper.
• You can save on the brand. A less expensive product can be applied in two layers, increasing the quality of the protective coating.

Mistakes to avoid:

When using primer mixtures, the consumption of varnish or paint is reduced by up to 70%.

In contact with

Wood is traditionally an environmentally friendly and sought-after material, from which not only furniture is made - it is also used to create various surfaces in the house. A primer for wood for painting must be of high quality and functional. Our article will tell you what its advantages, types, and how to apply such a solution correctly.

This composition, presented in liquid form, is used to treat surfaces for varnish or subsequent painting. Most often, manufacturers include in it special substances that are characterized by the subsequent formation of a film - oils, bitumen, resins, various types glue, as well as mandatory auxiliary components necessary for quick drying, pigments and other additives.

The base of the primer protective mixture is often not only acrylic, alkyd, but also mineral, oil, and others. Priming performed before coating the wood with varnish will help make the process of subsequent finishing of any wood cost-effective and simplified, as well as increase the shelf life of the material.

As is known, wooden surfaces of furniture, floors and others react very poorly to the influence of negative factors that provoke damage and further destruction of wood, such as precipitation and excessive air humidity (from which the wood can swell and become deformed), exposure to scorching rays of the sun ( provoke wood burning), insect pests (destroy the structure of wood). Primers for varnish are designed to strengthen and protect the surface, and subsequently ensure its reliable connection with varnish or paint.

Why is a wood primer needed for varnish? It performs the function of disinfection, since cheap types of wood tend to rot. Antiseptic impregnation of floors, furniture and other surfaces prevents the appearance of mold that destroys organic fiber. The primer is indispensable in order to strengthen the surface, since the resins it contains get between the fibers, thus sticking them together. This is true for old and drying wood. A primer is needed to reduce the absorbent properties of wood. The primer under varnish or paint acts as a separating and protective layer. The soil retains tannin inside the wood - a natural dye that often appears through water-dispersed coatings as unsightly spots.

Advantages

Some insufficiently knowledgeable craftsmen mistakenly believe that the primer can actually be replaced with an identical layer of paint with the addition of a solvent. But experts categorically disagree with this. In this case, it turns out that the final finish will be of lower quality, and you will need to use a lot more material.

The obvious advantages of wood primers include their ability to penetrate layers of material, providing impregnation and strength. A primer for exterior use fills pores and small cracks and prevents wood from deteriorating under the influence of excessive moisture. After priming the floor or furniture, the absorbency of wood materials decreases. By performing preliminary priming work, it is possible to reduce paint consumption, since primer is much cheaper. The product contains antiseptic components that have a disinfecting effect. That is, performing priming work can prevent the formation of mold or rot. This property is relevant for processing objects that are located on the street. The use of primers will also highlight the natural beauty of the wood and make it durable.

Classification by composition

Experts classify primers for floors and any other wood surface according to the composition of the main active ingredient and the functions they perform. Let us dwell on the types of such solutions in more detail.

Acrylic based

It is universal - can serve as protection against negative external factors and ensure good adhesion. Acrylic primer absorbs quickly and dries after a couple of hours. Acrylic primer does not have a harsh strong odor. Suitable for priming work on wood, concrete, brick, cement, fiberboard, chipboard.

Based on alkyd resins

Alkyd primer improves the adhesion of wood for further work. It is characterized by a distinct odor and dries within 10–14 hours. For example, an alkyd primer is suitable for decoupage on wood. Alkyd primer will be appreciated by those who are interested in this type of art and plan to perform renovation work. This mixture can be used to treat wood, concrete, gas silicate and expanded clay concrete blocks, brick, plaster.

Silicone-acrylic

They perfectly protect wood from moisture and maintain its normal internal balance. They represent a kind of waterproofing for wood.

Shellac

They are a variation on the theme of primer mixtures. Suitable for working with raw wood. They will help to isolate the layers of wood after cutting off the knots and removing the bark.

Epoxy

Epoxy and polyurethane primers are finishing paints that are diluted with a special solvent. The compositions of polyurethane and epoxy primers vary depending on the manufacturer. According to experts, they cannot be considered best options priming wood.

By functional features

Anti-corrosion and antiseptic

They will help protect the tree from the unpleasant and common phenomenon of corrosion and insect attack. Primer mixtures partially adopt this feature, since the above points are key in carrying out work on effective wood processing.

Deep penetration primer

It is used to prepare surfaces that are already quite old and have a loose structure for varnish - in particular, floors. This is necessary because upper layer Old wood tends to become rough and flake.

For many years, popular deep penetration primers have been produced under the Tikkurila brand. Tikkuril products contain flax oil. Tikkuril antiseptics are instantly absorbed and dry. Tikkuril primers protect wood from moisture and prevent the formation of mold, mildew, and rot. Tikkuril products are presented in a wide range and are suitable for protecting wood outside the house. Tikkuril primer does not interfere with exposure to sunlight, so after applying it it is worth further coating with varnish or paint as quickly as possible.

In order for the paint on the furniture to last long and well, the surface should be primed with Tikkuril furniture product. Tikkuril furniture primer can be tinted in any desired color. Tikkuril is often used to prime not only wood, but also complex surfaces such as aluminum, PVC plastic, and galvanized steel.

All Tikkuril deep penetration primers allow you to achieve quick and excellent results.

Primer with varnish

A product that is a combination of primer and varnish. Excellent for treating wooden floors and similar surfaces. It can not only strengthen the wood of the floor, but also reduce the consumption of other expensive materials. This product is recommended for use not only on regular floors, but also on parquet.

Product with waterproofing properties

Allows you to reliably protect wood from the ingress and destructive effects of moisture.

Universal

These primers combine all of the above qualities. The paradox is that in the case of individual comparison, such products cannot compete with specialized primers.

So, choosing a primer for a wooden floor or furniture or carrying out outdoor work is a responsible matter. Universal means suitable for quick and efficient processing surfaces for varnish, painting or finishing. They do not have a specific unpleasant odor harmful to human health and dry fairly quickly. A deep penetration primer mixture is necessary to transform old wood - for example, piece oak parquet, which has been in use for ten years. Waterproofing agents are necessary when finishing the outer layer of wood, that is, for facade works. As a specialized composition, Pinotex soil can be called. It is focused on solving specific problems that have arisen.

How to apply primer

The technique for performing priming work is not as complicated as it seems. The surface should simply be treated using a brush or roller. Most often, the manufacturer indicates the required consistency and best tool in the information located on the packaging. Popular today and mechanized method– it corresponds to that used for plastering on beacons. For these purposes, a regular and well-known spray bottle is suitable.

If you are going to prime thoroughly, for the first time people with experience advise using a more liquid solution. This way the product will be able to spread better and penetrate into all the cracks. Further layers can be applied in the consistency specified by the manufacturer on the packaging.

Priming is best done in warm, dry weather. The temperature range from 5 to 35 degrees Celsius will greatly help you in performing such manipulations. After each application, wait a couple of hours before priming or painting again.

For beginners, it can be difficult to prepare for the interior decoration of the house - in particular, the floor. You will first need to clean the wood from dirt, old layers of paint, and get rid of various flaws. This is done using sandpaper or a spatula. But this is difficult, so it is recommended to remove old paint using a hair dryer. At the end of this procedure, it is recommended to treat the wood with a solvent and fine sandpaper. If it is necessary to clean fresh wood, it is better to carry out scraping and mechanical grinding. Then use putty to seal any cracks found. Only then is it permissible to carry out priming.

• Dmitry Ivanovich

The main advantage of wood primer is that it can penetrate deeply into the texture of the product, firmly fixing materials not only on finishing coating, but also much deeper. The composition forms a varnish film on the surface of the wood with a water-repellent effect, which protects the wood from moisture, corrosion and the subsequent rotting process, but ordinary varnish will not cope with this task.

Primer for wood

To date natural material, such as wood, is gaining more and more popularity in construction. Wood is incomparable to any other materials, despite the fact that it causes many difficulties and worries when working. That is why many requirements are put forward to the composition of the substance for painting or varnish.

How to choose a primer?

Primer wooden surfaces with your own hands

Selecting a material for wood processing is an important process in which not only the material used is important, but also the place in which the coating is planned to be used (for interior or exterior work).

Several varieties of mass are now produced for different rooms, which is as possible would be better suited for wood, so take correct solution won't be difficult. As a rule, such primers are sold in the form of a soluble substance that must be diluted with warm water. There are also waterproof compounds, the popularity of which is in no way inferior. Therefore, when purchasing primer for wood, do not be lazy to carefully study its instructions.

If you still want to buy a soluble substance, be aware that such compositions are designed specifically to protect wood surfaces from corrosion. As for waterproof compounds, they serve to repel excess moisture. Therefore, if we're talking about not about internal work, then the second option will do never better.

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The most popular are oil and acrylic primers.

As a rule, oil compositions are used on a painted surface and applied in one layer. In this category there are also substances with deep penetration, although their cost is much higher, it is still better to take them.

Acrylic primer for wood for painting is independent material for finishing, which is considered the most popular and frequently used today. This substance is applied in several stages, after which they begin to apply paints and varnish.

Please note that the primer is a kind of base that is used before applying the finishing material. In terms of cost, the primary primer mass is much cheaper compared to paints and other materials for wood processing.

Very important criterion The thing that requires your attention when purchasing a primer is its transparency. Remember that only transparent substances are now considered to be of the highest quality and do not in any way limit subsequent Decoration Materials. In addition, such a substance can emphasize the unique texture of the wood, giving it sophistication, and will cope with this task no worse than varnish. By applying such a composition, you will notice that a film is formed on the surface being treated that does not pick up small fibers, eliminating the need for sanding the product.

Also, do not forget that very an important component any substance used to coat wood is an antiseptic that will protect your product or surface from insects.

There is one misconception that misleads beginners. Do not believe anyone who says that wood primer can be replaced by ordinary varnish or paint - this is absolutely impossible!

A variety of compositions for wood processing

Primer for wood

On shelves today construction stores There is a huge variety of primers for working on wood, the choice and purchase of which depends on the specific case.

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A comparison table of commonly used materials is given below.

Type of primer	Characteristic
Acrylic	Today, acrylic mass is considered the most popular and in demand. Performing priming work using it allows you to achieve smoothness that does not require additional sanding; you can immediately apply paint or varnish.
Alkyd	This substance is perfect for untreated wood, giving it smoothness. After using it, you can apply varnish, paint or other finishing materials.
Emulsion	This is a universal substance that is widely used not only for wood work. The material is popular because it is almost odorless, dries quickly and can be diluted with warm water.
Polyurethane and epoxy	Epoxy and polyurethane masses are paints that are diluted to the desired consistency with a special solvent. Pay attention to its composition, which is very different from different manufacturers, so it is very difficult to say exactly the scope of use of such a substance.

Remember that you need to choose a composition only depending on the place where you plan to perform the work, because the room may have a high level of humidity and require a certain composition from the substance that will help cope with this.

Features of working with wood primer

We carry out priming of wooden coverings ourselves

Well, now you have learned how to choose a wood primer for painting or varnish. But we have not yet finally resolved our issue.

When choosing a primer composition for interior work or exterior finishing, it is important to pay attention to next row criteria:

1. decide whether for internal or external finishes material is purchased;
2. calculate the time you will need to treat the surface;
3. Think carefully about the conditions in which you will have to prime the wood, apply paint or varnish.

Think carefully about where you will be finishing the surfaces, outdoors or indoors. Remember, if you have to interior decoration, and the mass will be purchased for exterior finishing, this may cause poor adhesion.