Work With Primers

How and what can I dilute the primer?

Most primer mixes are sold ready for use. It is enough to stir well and it is possible to put. Primer concentrate may need to be diluted. A number of products are presented in the form of dry soil, which before work will need to be diluted. How and what to do?

  • Why do I need to primed the surface
  • What to use as a diluent

To answer this question, you need to know the composition of the substances in the mixture, and what kind of solvent( diluent) you should use. For example, the water-dispersion mixture is usually diluted with water. In other cases, a certain organic solvent is used. The choice of diluent may also depend on the type of substrate. By the way, to work on highly porous surfaces, the concentrate is almost never diluted.

It is important to know: what primer than to dilute

Why it is necessary to primer the surface of

  1. On the primed surface, the subsequent finishing materials fall more qualitatively.
  2. Primer extends the life of the coating.
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  4. The deep penetrating primer can adjust the porosity of the substrate, and strengthen it.
  5. After penetration, the primer prevents wear of the material, protects against corrosion.
  6. Masking of small defects.
  7. Primer mixes for painting, puttying, varnishing significantly reduce the consumption of finishing materials.

What to use as diluent

Primers differ in composition, properties, application. In this case, they are all divided into two types - strengthening and increasing adhesion( adhesion).

  1. Acrylic is also called a dispersion or emulsion. We can say that it is universal, as it is used for almost all types of surfaces of walls, floors, ceilings, but it is not used for metal, as it does not have anticorrosive properties. Acrylic concentrate can be diluted with water. The substance is non-toxic, odorless. Acrylic can be a cohesive primer, and a deep penetration.
  2. Alkyd is used more for the preparation of wooden walls, floors and other bases for further painting. Due to the deep penetration and loosening of the top layer of the tree, the primer mix will provide better adhesion of the base and paint. Used for enamel and for work on metal. But it is not recommended to use for walls of stone, concrete and other minerals. It also includes anticorrosive alkyd mixtures with a rust modifier. Concentrate can be reduced by a similar organic solvent as in the composition of the mixture, or by using white spirit, xylene, a solvent, and mixtures thereof.

    Alkyd primer is more suitable for metal than for stone, concrete, etc.

  3. Epoxy and polyurethane are used for the treatment of concrete base of walls, floors, ceiling, under enamel. Also, individual mixtures are designed to work on metal( against rust) followed by enamel coating. To facilitate the application and lengthening of the start of polymerization, xylene( 5-10% of volume) or another universal liquid is suitable as a solvent.
  4. Polystyrene is used for walls - on plaster and wood. The substance is toxic. It requires compliance with personal protective measures, as well as good ventilation of premises during operation and during the drying period. It is the safest to use in the intermediate finishing of the exterior walls of the building.
  5. Primers for metal work are generally separated into a separate group. The composition can contain various substances responsible for the specific properties of the material: insulation, protection, transformation. The concentrate is diluted with various solvents to 10% of the total volume, but not by water. In general, the types of "native" organic solvents or universal are used. Priming of metal structures in several layers is necessary for enamel, painting and in conditions of constant humidity.
    • insulating, protecting against penetration of moisture and rust formation, - glyptal, phenol-formaldehyde formulations. Form a strong, waterproof film;
    • protector( passivating) - make iron unreceptive to the influence of aggressive media, that is, increase its insulation;
    • converting - translate rust into a sparingly soluble or rapidly breakable compound, increase the adhesive properties of materials.
  1. Perchlorovinyl is designed for the treatment of external walls of concrete and brick. Typically, such formulations have a normal working consistency. In the composition there is an organic solvent( xylene or a solvent), it also dilutes, if it is too viscous.

Diluted, primer mixture is better laid down, quickly sets. Nevertheless, the deep-penetrating appears to be better in undiluted form.

Experts recommend that when performing intermediate construction and repair work, it is imperative to make priming. In turn, manufacturers of building mixtures worried that the customer could use the material without problems, providing the package with instructions for use.

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