Each of us would like his house not only to be a place in which love reigns, but also to attract the attention of others, to be beautiful. If a person decided to paint or plaster the facade, then he will not do without a primer. After all, untreated walls will collapse due to the development of bacteria and mold and become saturated with moisture.
Primer for facade work is a grout, which is used to adhere the base with plaster coatings. It is used for outdoor applications. The primer of the walls is mandatory, as 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. Next - in more detail about each type of facade primer for outdoor use.
What species secrete?
The construction market offers a wide variety of compositions, each of which has its own protective properties. Types of facade primers:
- Plain.
- Concealing.
- Acrylic and alkyd.
- Firming.
- Antiseptic.
- Anticorrosive.
Plain
The composition of this primer includes a dispersion of water and a polymer resin. It is very effective and does not have specific qualities. Apply the usual mixture with a brush and a roller. Application Features:
- reduces the consumption of putty and facade paint;
- thanks to the use of a conventional primer, the operating time of the external decorative coating is increased;
- water repellent property;
- It is frost resistant material.
For example, Ceresit CT - 63 is a decorative plaster that is flexible and durable. The price in the store is from 642 rubles.
Firming
Reinforcing primer is used to prepare wood and mineral surfaces. Features:
- strengthening loose and loose surfaces;
- increased adhesion of glue, paint and decorative plaster;
- increase in durability of an external covering.
Acrylic
Acrylic facade primer is a suspension, the main composition of which, in addition to the dryest mixture, includes water. This is the most common and used type of reinforcing means used in construction. Its advantages are that the composition can be applied to different types of surfaces. Its main advantages include:
- application to wood, brick, drywall, gypsum;
- decrease in the absorbent capacity of the material, thereby reducing the consumption of decorative coatings;
- evens out the color of the surface;
- also a decrease in moisture absorption.
Anticorrosive
Corrosion-resistant primer is used for metal surfaces. It forms a film due to which the material does not rust. It can be applied as a protective agent or as an intermediate layer before painting.
Features when using:
- corrosion prevention;
- adhesion improvement:
- very easy to apply;
- quick drying.
To even out color and hide impurities, use Ceresit CT 16 primer paint. Its color is white. It is mainly applied under coloring for any bases. Features:
- good alignment of the surface itself;
- has an even tone;
- the consumption of paintwork material is reduced by 3 times;
- dries quickly, odorless, environmentally friendly.
Antiseptic
It contains bactericidal substances and polymers. This impregnation strengthens the surface and does not allow microorganisms, molds and mosses to multiply. Benefits:
- can be applied to any base;
- strengthens;
- can be used as a protective coating or as an intermediate layer.
Application of facade primer: before applying the composition, you need to prepare the surface. It should be flawless and smooth as much as possible. Also, the base must be rid of dust. This primer can be applied twice, but only subject to the drying time of each coat. At least the first of them dries for 2-3 hours, respectively, the next will dry longer. The temperature during the execution of work should range from +18 to +20 0 .
How much does this mixture need to work?
How much primer is needed for the facade depends on the base material. To process cardboard, wooden surfaces, fiberboard and particleboard, you need 100-120 ml / m 2 . alkyd primer. To process a metal coating, 80-120 ml / m 2 is needed. A deep penetration primer will require 0.1 kg / m 2 . An acrylic primer will require 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 excellently permeates the surface and has good adhesion.
Acrylic is a product that can be diluted with water.
Antiseptic agents that prevent bacteria and mold from developing can serve as excipients for the quality of facade primers.
A mixture called Ceresit CT-15 is used to prepare the main surface for facade paint and silicate plaster.
Water dispersion primer
The water-dispersion primer ST-17 is a composition whose components are numerous types of compounds of dispersions and polymers. This primer is used to treat surfaces that are prone to moisture. These include:
- brick surfaces;
- block foundations;
- any plaster.
Dispersion primer is used for all types of work and any surfaces. It dries quickly, penetrates deeply into the base, has a high viscosity, good adhesion during drying. It does not include solvents, also this tool saves the consumption of paint and glue. Thanks to the pigment in the primer, a surface that has already been treated can be distinguished.
Facade primer "Knauf"
Concrete contact is a soil, the basis of which is a mixture of sand, cement and special fillings, due to which its qualities are improved. With this tool, smooth, dense and weakly absorbing bases are treated. For example, it can be concrete surfaces, cement plasters, special plates designed for gypsum coating. Do not apply the product on an icy wall. It can be used at temperatures from +5 0 to +30 0 . Consumption - 0,300 kg / m 2 .
"Tiefengrund Knauf"
Facade primer "Tiefengrund" - a tool that dries very quickly. It is used to strengthen the base, to reduce the absorption of walls and improve adhesion (putty, paint, wallpaper). The composition is treated with finely porous surfaces, gypsum plasterboards, gypsum and cement plasters and boards, screeds. Use both for internal protection, and for external. Drying time depends on conditions, it can last from 3 to 6 hours.
A mixture of acrylic polymers
Facade primer deep penetration is a composition that includes a mixture of acrylic polymers. With this tool, wood, plasterboard, foam concrete, brick and mineral coatings are prepared for processing before painting or plastering. Do not use such a 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 simply wash.
- The base is used only dry.
- Before applying the solution, you should familiarize yourself with the manufacturer's instructions.
- In order for the deep penetration acrylic primer to get into fine cracks and pores well, you need to make it liquid, then it will even out the surface.
- The prepared wall is treated with a roller, and inaccessible places with a brush.
- The external primer of surfaces must be carried out in warm and dry weather.
Reviews
Particular attention should be paid to reviews. According to statistics, the Ceresit soil mix is in greatest demand. It is used by all masters and is called the most high-quality tool. They respond well to the primer from the popular Feidal brand. The composition penetrates deeply into the base, has high bonding properties, and is also universal in application.