Carrying out finishing works in the apartment, it is advisable to think of how to choose a primer of deep penetration, to avoid embarrassing missteps and make repairs efficiently.
Why primer surface
When carrying out repairs in the apartment is veryit is important to choose the right quality materials suitable for performance and successfully complement each other. It is especially important to pay due attention to the choice of a primer composition for the pretreatment of surfaces. The term "primer" is commonly understood as a special adhesive weight of the liquid homogeneous texture, consisting of a certain proportion of binders and polymers. On its quality will depend on the stability of the final coating, the level of adhesion to the substrate, the occurrence of cracks in the future, peeling and the need for repeated repair.
How to choose a primer of deep penetration
Qualities primer mix will varyDepending on the quality requirements of the material and operating conditions. To select the right primer, you must take into account the state of the surface to be treated. There are several main types of primer materials that differ depending on the binder included in their composition. Proper use of primers would allow to achieve the desired result, without spending on its achievement of excessive manpower and financial resources, save up to 30% of the cost of finishing materials during the repair work.
- Alkyd primer. These primers are optimal for primaryapplication to the timber. Through this type of surface primers wood becomes more susceptible to the application of decorative coatings and the adhesion area increases - is associated with a specific chemical reaction that occurs in the upper layers of wood under the influence of a reagent which is used as a phosphate or zinc chromate. This primer is suitable for treating metal surfaces, because it has good anti-corrosion properties. Alkyd primer reach their optimum performance after 12-14 hours after application, then the surface may be coated with the finish trim. However, the walls covered with plaster and decorated with gypsum boards, alkyd primer applied can not, that their use is limited substantially.
- Acrylic primer. This is quite a large group of finishingmaterials intended for primary or final coating all surfaces. Acrylic primer is almost universal: they can be applied to fresh, old plaster, gypsum boards, wood-fiber boards, concrete, wood, metal surface. Important advantages of acrylic primer is the absence of unpleasant odor, environmental safety and quick drying time of the applied material. Finish on such a primer may be applied after 2-5 hours after application - the exact time will depend on the temperature, humidity, and the quality of the substrate. Yet the use of acrylic primer is not always possible - in conditions of high humidity, changes in temperature, they are unable to provide a sturdy grip to the base paint, so you may need to use additional materials to protect it. This is especially significant when applied to the soil on the metal surface - in such conditions they quickly corrode.
- perhlorvinil primer. To protect the metal best suitedmodern priming materials based perchlorovinyl - they are well kept lowering the temperature, dry quickly and for a long time, eliminate the need for decoration. With all their advantages, these coats are quite toxic, can not be used in a residential area, and when working with these materials must comply with certain security measures.
Other types of primers for interior works and non-residential premises
Analogous qualitative characteristicspossess polystyrene, polyvinyl acetate and phenolic primer - they are optimal for the treatment of plaster, wood and metal surfaces in non-residential premises on the street. When used in enclosed areas should be particularly careful work carried out with the active ventilation, use personal protective equipment. In dry indoor spaces can be used Gliphtal primer. They dry in 22-24 hours, for a long time provide a secure grip base with topcoat and serve as a guarantee of quality of the finishing works.