Primer of walls before painting: whether to be primed after puttying

Primer is a preparatory coating before painting the walls. After the primer, the paint lays on the surface better, resulting in a perfectly even coating. However, some do not use the soil, and immediately start painting. Let's find out how much the primer of the walls is really necessary before painting, whether it is possible to refuse it and how to prime the surface in accordance with all the rules.

Advantages of primer walls before painting

Do I need to prime the walls before painting and can I do without it? The thing is that getting along, in general, is possible, but extremely undesirable. Familiarity with the properties of the primer and the effect that it allows you to achieve will help you understand why the walls should be primed before applying the paint.

• Soil strengthens the surface, penetrating deeply with its structure.
• It evens out the base, fills small cracks and pores that are on the surface, thereby reducing paint consumption during the painting process.
• When priming a wall, you kind of cover it with a thin film, on which paint lays well, without leaving spots and stains. If the primer has laid a thin even layer, then the paint will also lie well.
• Primers are available in different colors, you can choose the primer for the color of the paint to make it brighter.
• For a wet room, such as a bathroom, you can purchase an antiseptic primer. She protects the walls from mold and mildew. After priming, the painted surface will be reliably protected from these troubles.
• Without a preliminary coating, the paint may crack, and if you want to repaint it, then in the process it will lag behind the putty.

Types of primer

There are several varieties of primerwhich are intended for different types of surfaces:

• Alkyd - for wood and metal. First of all, it is used for metal structures, since it has anti-corrosion properties. On wood and chipboard, this primer creates a protective layer that prevents the destruction of the material.
• Acrylic - universal, suitable for all surfaces. It penetrates the pores of any material: wood, plaster, putty, concrete, metal. Strengthens the base and protects it from moisture.
• Epoxy - for concrete walls. Its base is epoxy resin, which increases the strength of the coating. It is used as a basis for painting, linoleum coating, gluing ceramic tiles. It is durable, on it cracks will not appear over time.
• Aluminum - for wood and metal surfaces. Contains aluminum powder, which provides reliable adhesion of the paintwork material to the base.
• Silicate - for brick or decorative plaster. Most often it is used for processing facades. Resistant to temperature changes, durable, moisture resistant. The places of its possible use in the apartment are a bathroom and a balcony or a loggia.
• Polyvinyl acetate - used for special types of paint. It is applied to the surface, which is then painted with polyvinyl acetate paint. It has good adhesion to different surfaces, dries very quickly.

The primer must be selected based on the type of surface, area and manufacturer. If you need to cover a small area, then you can buy an aerosol can, it is more convenient to use.

Buying funds for repairs is in the hardware store, in consultation with a qualified seller. A well-known manufacturer is an additional plus; it can guarantee a good result. Before buying, check the expiration date and appearance of the package.

Primer base

Most often, the walls are leveled with putty. Some believe that it can not be primed, because the putty surface is already a good preparatory layer for paint. But he has flaws: he can crumble, and besides, he absorbs too much coloring compound. The primer will strengthen the base and save paint.

Wallpaper for painting does not require priming, as they are designed for applying a coloring matter.

Before wallpapering, the walls must be primed. Soil will provide a reliable connection of this layer to the walls.

Drywall should be primed in two steps. First, you need to cover the sheets immediately after installation. Secondly, the final finishing with putty is also covered with primer.

Many people wonder if each coat of paint should be primed. If you paint the wall on top of the old layer, then the primer must be used with different colors of paints. It creates a barrier between two layers of paint, and the top layer does not shine through.

How to prime the wall?

Primer technology is different for different types of soil. If you decide to apply it on the walls or ceiling, read the coating instructions for your chosen type of primer.

Remember that before applying a water-based paint, it will be necessary to prime the walls.

Instruments:

• Protective mask and gloves.
• Paint roller or brush.
• Pallet.
• Degreaser.

Preparatory work:

1. Wear safety glasses and gloves.
2. Provide fresh air to the room. In this case, the temperature should be within 5–25 degrees above zero.
3. Sand the putty with a sandpaper.
4. Remove dust with a brush or rag. The fungus and mold must be removed with a wire brush.
5. Degrease the surface with white spirit or acetone.

The main works:

• Pour a small amount of primer into the pallet.
• Apply one coat to the wall with a roller or brush.
• Roll the primer well along the wall so that there are no puddles and smudges.
• Wait until it dries completely, it can take from 4 hours to 1 day.
• Apply the water emulsion in two layers.

A primer is a necessary step before painting any thing or walls in an apartment. It strengthens the surface, protects it from destruction, rust, cracks. After this procedure, the paint lays down better, and it requires less.