Each of us would like his house not only to be a place where love reigns, but also to attract the attention of others, to be beautiful. If a person decides to paint or plaster the facade, then he will not do without a primer. After all, walls that have not been treated in advance will collapse due to the development of bacteria and mold and will be saturated with moisture.
Primer for facade work is a liquid mortar that is used to bond the base to plaster coatings. It is used for outdoor work. The primer of the walls is required, because it is able to change their structure in the right direction. All coatings are moisture-repellent, prevent the formation of plaque, significantly save money for subsequent treatments, penetrating deep into the pores of the base. Further - in more detail about each type of facade primer for outdoor use.
What species are distinguished?
The construction market offers a wide variety of compositions, eachof which has its own protective properties. Types of facade primers:
- Regular.
- Covering.
- Acrylic and alkyd.
- Firming.
- Antiseptic.
- Anti-corrosion.
Plain
This primer contains water dispersion and polymer resin. It is very effective and has no specific qualities. Apply the usual mixture with a brush and roller. Application Features:
- reduces the consumption of putty and exterior paint;
- due to the use of a conventional primer, the service life of the external decorative coating is increased;
- water repellent;
- is a frost-resistant material.
For example, Ceresit CT - 63 decorative plaster, which is elastic and durable. Price in the store from 642 rubles.
Firming
Strengthening primer is used to prepare wood and mineral surfaces. Features:
- strengthening loose and loose surfaces;
- increase adhesion of glue, paint and decorative plaster;
- increasing the durability of the outer coating.
Acrylic
Acrylic facade primer is a suspension, the main composition of which, in addition to the dryest mixture, is water. This is the most common and used type of reinforcing agents used in construction. Its advantages are that the composition can be applied to different types of surfaces. Its main advantages include:
- drawing on wood,brick, drywall, gypsum;
- reducing the absorbency of the material, thereby reducing the consumption of decorative coating;
- evens out the surface color;
- also reduce moisture absorption.
Anti-corrosion
Anti-corrosion primer is used for metal surface. Forms a film due to which the material does not rust. Can be applied as a protective agent or as an intermediate coat before painting.
Features when using:
- corrosion prevention;
- adhesion improvement:
- very easy to apply;
- fast drying.
To even out the color and hide the dirt, use the primer paint Ceresit CT 16. Its color is white. It is mainly used for staining for any reason. Features:
- good alignment of the surface itself;
- has an even tone;
- consumption of paint material is reduced by 3 times;
- quick dry, odorless, environmentally friendly.
Antiseptic
It contains bactericidal substances and polymers. This impregnation strengthens the surface and does not allow microorganisms, mold and moss to multiply. Benefits:
- can be applied to any substrate;
- strengthens;
- can be used as a protective coating or as an intermediate layer.
Applying a facade primer: before applying the composition, you need to prepare the surface. It must be flawless and smooth.as much as it is possible. Also, the base must be free of dust. This primer can be applied twice, but only if the drying time of each layer is observed. At least the first of them dries for 2-3 hours, respectively, the next one will dry longer. The temperature during work should range from +18 to +20 0 С.
How much of this mixture does it take to work?
How much primer is needed for the facade depends on the base material. To process cardboard, wooden surfaces, fiberboard and chipboard, you will need 100-120 ml / m 2. alkyd primer. Metal coating needs 80-120ml/m 2 to process. A deep penetration primer will need 0.1kg/m2. Acrylic primer will need 120-150 ml/m 2.
How to dilute them?
When purchasing building materials, you should immediately pay attention to their instructions - how to use them. Preparation of the composition for work usually depends on the type of facade primer.
For example, alkyd is a special mixture that does not need to be diluted. It perfectly impregnates the surface and has good adhesion.
Acrylic is a product that can be thinned with water.
Auxiliary substances for the quality of facade primers can be antiseptic agents that do not allow bacteria and mold to develop.
A mixture called Ceresit CT-15 is used to prepare the main surface for facade paint and silicateplaster.
Water dispersion primer
Water-dispersion primer ST-17 is a composition, the components of which are numerous types of compounds of dispersions and polymers. This primer is used to treat surfaces that are exposed to moisture. These include:
- brick surfaces;
- block basics;
- any plaster.
Dispersion primer is used for all types of work and any surfaces. It dries quickly, penetrates deep into the substrate, has a high viscosity, good adhesion during drying. It does not include solvents, it also saves paint and glue consumption. Thanks to the pigment in the composition of the primer, it is possible to highlight the surface that has already been treated.
Facade primer «Knauf»
Betonokontakt is a soil based on a mixture of sand, cement and special fillings, which improve its quality. Smooth, dense and slightly absorbent substrates are treated with this tool. For example, it can be concrete surfaces, cement plasters, special slabs designed for gypsum coating. Do not apply the product on an icy wall. Can be used at temperatures from +5 0 С to +30 0 С. Consumption - 0.300 kg/m 2.
Tiefengrund Knauf
Facade primer "Tifengrund" is a product that dries very quickly. It is used forstrengthening the base to reduce the absorbency of the walls and improve adhesion (putty, paint, wallpaper). The composition treats finely porous surfaces, gypsum boards, gypsum and cement plasters and slabs, screeds. Used for both internal and external protection. Drying time depends on conditions, it can last from 3 to 6 hours.
Acrylic Resin Blend
Facade deep penetration primer is a composition that includes a mixture of acrylic polymers. With the help of this tool, wooden, plasterboard, foam concrete, brick and mineral coatings are prepared for processing before painting or plastering. Do not use this primer on metal surfaces.
How to treat the surface before starting work?
To properly treat the surface with a primer, you need to follow certain rules:
- Before starting work, clean the walls of dirt and dust, degrease or just wash.
- The base is used only dry.
- Before applying the solution, you need to read the manufacturer's instructions.
- In order for the deep penetration acrylic primer to get into small cracks and pores well, you need to make it liquid, then it will level the surface.
- The prepared wall is treated with a roller, and hard-to-reach places with a brush.
- External priming of surfaces should be carried out in warm and dry weather.
Reviews
Special attention should be paid to reviews. As showsstatistics, the Ceresit soil mixture is in the greatest demand. It is used by all masters and is called the highest quality tool. They speak well of the primer from the popular brand Feidal. The composition penetrates deeply into the base, has high adhesive properties, and is also universal in use.
