Outdoor brick primer and application features

Outdoor brick primer and application features Brick primer - application and how to choose the right one

Is a primer solution required for wall surfaces, made of bricks? Some people believe that painting brick walls or applying plaster on it without priming, because such materials already perfectly fit the surface of the base to be treated, providing a high-quality level of adhesion to surfaces.

But this statement is correct not for all building-type mixtures, but only for primer additives that contain primer-varnishes, primer-paints or even primer-putties.

If there is no such element in the composition of the finishing material, then applied without preliminary plastering will soon begin to crack, and the paint and varnish material will peel off. So, let's take a closer look at the brick primer.

What are the advantages of priming the base

The use of priming mixtures when performing repair work has long been a mandatory requirement.

The fact is that all materials must adhere firmly and firmly to the base. For this purpose, a primer is used. But it is not always easy to figure out which primer is more suitable for the wall surface. A good composition will become an indispensable material for any repair process. Thanks to the use of such materials, the overall quality of finishing work is improved.

Moreover, the service life of the pasted wallpaper and, in general, all materials by means of which the surface will be processed, increases.

Consider the main functions that a primer composition for wall surfaces perform:

  • Outdoor brick primer and application features Protection of metal elements from corrosion.
  • Forms a protective film that improves moisture resistance.
  • Smoothing or very strong decrease in absorbency. Regulation of the porosity of the main material.

  • Protection against fungal colonies, mold and bacteria. The property will be especially relevant for rooms where a high level of humidity is constantly maintained.
  • Dedusting, and also surface leveling of the walls.
  • Increase in strength, and also increase the durability of the material.
  • Increases adhesion so that the finish will adhere better to surfaces and the primer will extend the life of the substrate.

The quality of construction and finishing works will depend on the correctly selected primer, depending on the condition of the brick wall and further decorative design.

The wall priming suction will provide:

  1. Adhesion (adhesion) of the finishing material to the base surface.
  2. Strength (when using reinforcing mixtures with deep penetration), which is extremely important when strengthening crumbling or old walls.
  3. Water resistance - additional protection of bricks from atmospheric precipitation or in a room with a high level of humidity.
  4. Protection - primers with antiseptic additives reliably help prevent the development of fungal colonies and mold.

  5. Efficiency - after using primer mixtures, further consumption of paint and varnish material or tile glue will be much reduced.
  6. Finishing quality - on a primed wall made of bricks, the paint and varnish material will lie flat, the plaster will not crack, and the adhesive composition for the tile at moderate consumption will ensure reliable adhesion of the decorative tile to the base.

How to choose formulations?

How to choose suitable primers

When choosing a primer for processing the wall surface, consider:

  1. The constituents of the base - priming mixtures for simple or sand-lime bricks will differ in their properties. For silicate smooth bricks, adhesives are used before painting or applying a plaster.
  2. Material condition - for a cracked, old or even crumbling wall, it is required to use reinforcing primers, preferably with a deep degree of penetration, before further decorative coating is applied.

  3. Location of walls - for walls of a facade type or in wet rooms (kitchen, bathroom or bath), you should buy a primer with increased moisture-repellent and antiseptic characteristics. For porous or simple bricks, it is recommended to use moisture resistant mixtures with a deep degree of penetration.

In addition, the chemical composition of the primer for plastering bricks should be taken into account:

  1. Water-soluble or silicone-based acrylics are suitable for most brick walls, environmentally friendly, do not have a harsh aroma and dry out quickly.
  2. Water-dispersive, as a rule, are represented by primers with a deep degree of penetration. They provide good adhesion to the substrate and help to strengthen the walls.

    They can be used before applying any topcoats.

  3. Alkyd perfectly fit any brick base, providing further even gluing of wallpaper, as well as high-quality staining. It is not recommended to apply alkyd primers before plastering. Certain plasters come into "chemical conflict" with the alkyd components and this affects the future quality of the finish.
  4. Mineral compositions - based on cement, gypsum or even lime.

    They fit perfectly on any bricks that provide high-quality adhesion and protection from external conditions. Often, deep penetrating mineral-type mixtures are used to improve the strength properties of indoor and outdoor walls. They are non-toxic and also environmentally friendly. These primers can be used prior to any decoration type.

  5. Universal is convenient to use for complex repairs of small-sized areas, which consist of materials of different structure.

    for work only on brick bases, it is recommended to take special primer solutions.

How to choose a primer composition - deep penetration or simple, and what is its active component, everyone must decide for himself when buying. If for some reason you find it difficult to choose, you should seek advice from a sales consultant in a construction market.

How to ensure high quality priming

So that the wallpaper or tile is held fairly firmly, and the paint and varnish material and plaster do not cracked, it is required not only to select the required primer composition, but also to apply it to the surface of the walls in compliance with all technology.

Before starting priming, the base should be prepared:

  • Outdoor brick primer and application features Thoroughly remove old paint, dirt or lime with a brush or spatula.

  • Seal any large gaps with filler or cement mortar.
  • If there are fungal colonies, efflorescence or mold, then before applying the primer, it is necessary to treat problem areas of the surface with special mixtures.
  • After that, the base of bricks should be rinsed with clean water, and also dried well (usually it takes about a week for perfect drying). It is allowed to apply a primer coat on important wall surfaces if they have a mineral base.

Once the brick wall has been cleaned and properly prepared, priming can begin.

They can be carried out using the following devices:

  1. The brush is ineffective, it takes a lot of time when applying the composition to large areas. It is advisable to use a brush as an auxiliary tool for impregnating hard-to-reach places.
  2. Roller - makes it possible to quickly and efficiently process large surfaces, and they can be applied as simple primer solutions, and those that deep penetration.
  3. Spray gun - evenly and quickly will distribute the primer mixture over large areas.

Please note that both deep penetration primers and conventional primers are applied in a thin layer on a brick base, and left for a couple of hours to dry.

If necessary, the procedure should be repeated several times, achieving the required properties of the walls before applying a decorative type of finish.

Choosing a primer mixture in accordance with the base and finishing materials, and in full compliance with the priming technology, you can provide durable high-quality repairs.

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