Colorless acrylic primer

Colorless acrylic primer Colorless primer - application, properties, varieties

The topic of this article is very important, because lumber for a long time they have been used for the production of furniture and other entourage elements, used in construction and so on.

In the first two cases, lumber can be painted or varnished. In the meantime, it is well known that wood must be properly prepared before applying paints and varnishes.

Before you know what kind of deep-acting primer solution, you should consider in more detail what caused the need to use such funds. By the way, special attention should be paid to the colorless primer.

Reasons for using primers

Is the primer solution for wood under varnish so important or can you still do without the use of such agents and thus to save money? It turns out that there are many objective reasons for using primers, among which we note:

  1. Ensuring an excellent level of adhesion of the surface of lumber and paint-and-lacquer coatings. Regardless of the type of surfaces to be painted, paints and varnishes stick to special primers much better. Ultimately, having previously prepared the surface, you can be sure that after a while the paint will not peel off, and will not bubble up due to non-compliance with the temperature operating mode.
  2. Saving paints and varnishes, because the cost of primers is much lower than the cost of varnishes and paints. The photo shows a standard solution for treating wood before painting.

    The wood will differ in the porosity of the structure, which actively absorbs the applied materials of the paint and varnish type. When you apply a primer, you will close the pores, and then you can paint everything in one layer.

  3. High quality staining, because the use of primers will guarantee a leveling effect. The surface of the lumber, even after mechanical processing, will not be perfectly smooth. Primers, when applied to the surface, will fill in small-sized irregularities, and as a result, the prepared sawn timber will look smoother, and the paint will lay on them more evenly.

  4. The strengthening effect is possible due to the penetration of primers into the wood pores. When entering a porous structure, such solutions begin to solidify, as a result of which the porous structure of wood ceases to be such and becomes almost monolithic to a depth of 1 cm from the surface.

So, we were able to determine that a primer for wood for outdoor work and interior decoration is simply necessary. It remains only to find out what specific means for the preparation of painted surfaces can be bought in special stores.


Classification of primer coatings

In order to understand which it is the primer mixture for wood that is better, you should first decide what specific requirements you have for such products and the surface they are processing.

The fact is that different priming compounds have different properties, and therefore, in order to choose the right products, you should consider the range that is on the market and tell you about the properties of certain varieties. A primer is a wide range of formulations that are prepared using a synthetic or natural base. In the composition of such funds, there must be solid or liquid film-forming substances, such as, for example, alkyd, drying oil for wood, epoxy and formaldehyde resin, urea, etc.

The range of compositions is represented by colored and colorless primers for wood. Colored modifications are usually purchased for further application of paints and varnishes, and at the same time, colorless analogues can be applied to the surface before using the varnish composition.

Depending on the characteristics of the fillers and the composition, the primer will be applied in a layer, the thickness of which will be from 0.01 to 0.1 mm (this is from 10 to 100 microns).

According to the composition, primers can be divided into the following categories:

  1. Colorless acrylic primer Shellac primers - required to neutralize the effects of resins. The use of such tools will be especially justified when working with coniferous wood, where there are a huge number of resin pockets.

    It is not recommended to paint lumber directly over the resin, because the applied coating later begins to discolor in places. A similar situation will be observed with the use of wood stains. Stains on oily areas are not absorbed, but rather curl up. At the same time, such problems are not visible on the prepared lumber.

  2. Acrylic primer for wood and varnish is a universal type of compound that can be applied under treatment with any paint and varnish.

    Such funds will be characterized by a large list of operational advantages, among which we note the complete absence of aroma, quick drying (on average, about 3 hours at room temperature), and also the ability to dilute with water for ideal penetrating ability.

  3. An alkyd-type wood primer can be used as a preparatory and independent coating. Such funds are colored and monochrome.

Alkyd-type compounds are considered one of the best solutions for further painting of unprepared wooden surfaces. So, to begin with, we note that such compositions have excellent penetrating ability, and therefore they will fill most of the irregularities.

After that, the surface will need to be leveled with sandpaper, and the paint and varnish material can be applied.

Please note that along with the compositions that are sold in standard containers - in hermetically sealed buckets, there are primer aerosols, which are supposedly intended for painting cars and metal parts. In fact, these bottles contain an acrylic universal primer that can be used to treat small wooden surfaces.

By functionality, the following compositions can be distinguished:

  1. Reinforcing compositions - impregnations that will be applied to lumber begin to get into the upper layers of the porous structure and begin to harden there ..

    . As a result, lumber will become stronger and demonstrate an increased level of resistance to environmental factors.

  2. Formulations that provide perfect adhesion are used for perfect adhesion of the treated surface and the paints and varnishes used.
  3. Bactericidal impregnations are applied in order to have a disinfecting effect on the surface of the wood.
  4. Combined formulations that combine the properties of several agents or all of the above.

According to the peculiarities of use, it is possible to distinguish between a primer for interior work, compositions required for exterior use and universal products that can be used for finishing the exterior and interior.

Please note that the correct choice of primer in accordance with the particular use is a very important point that should not be neglected. As a rule, complete information about the temperature regime and conditions of use will be on the packaging of the primer.

Technology of preparing lumber for further painting

After all the main features of the colorless primer that is on sale have been considered, we will tell you how to use as a deep penetration primer for wood.

Instructions for applying leveling agents, will ensure a high degree of adhesion, as follows:

  • Colorless acrylic primer Lumber should be carefully sanded so that no fragments of previously applied paints and varnishes remain on their surface.

  • From the surface, remove dust that appears during sanding.
  • The primer is thoroughly mixed so that the binders and fillers acquire a uniform consistency.
  • The primer should be applied to the prepared surface using a brush, roller or even a spray.
  • After the applied product has dried perfectly, irregularities on the surface of the lumber can be putty and smoothed out with sandpaper.

After finishing the preparatory work, you can start painting.

How to make a transparent primer yourself

Can a primer be made for wood with your own hands, or is it better not to risk it and use factory products. There is no unequivocal answer to such a question, and, nevertheless, if the cost of the compositions on sale seems high to you, why not try to save money? As mentioned earlier, the composition of the funds has two main components that determine the operational and technical properties of the material. We will talk about filler and binder. In the role of a binder, PVA glue can be used, the cost of which is low. Crushed chalk can be used as a filler.

We suggest considering what instructions for preparing the composition:

  1. One measure of glue and three measures of pure water should be mixed in a plastic clean container until a uniform consistency is obtained.
  2. A measure of crushed chalk should be gradually poured into the resulting solution, and at the same time do not stop stirring the mass.
  3. At the exit, you will get a liquid solution, which, when applied to wooden-type surfaces, will begin to absorb quickly, and after perfect drying, form a barely noticeable whitish coating.

The proportions given are the best if the product is to be applied to soft woods. The liquid, hand-made primer quickly gets into the microscopic pores and eventually hardens in them.

Good advice! If hardwood is to be processed, it will be more expedient to slightly increase the proportion of glue when preparing the primer composition.


So, now we have an idea of ​​how and for what it is required to prepare lumber for further staining. As a result, you can buy one or another primer and prepare your cottage from wood / summer cottage for painting. You can find more useful information in the video tutorial.