Oil paint for outdoor use - step by step instructions for application!

The popularity of oil paints has dropped markedly with the advent of universal formulations on acrylic, latex and silicone bases, but there is still a certain demand for them. The explanation is simple - with excellent operational properties, such paints are distinguished by an affordable price, which allows reducing repair costs. In order to choose the right composition for outdoor work, you should familiarize yourself in more detail with the technical characteristics of oil paints, their marking, and the subtleties of application.

Oil paint for outdoor use - step by step instructions for application!

Oil paint for outdoor use

Application and composition

Scope of oil paints are quite wide: they are used for finishing facades, fences, decorative elements, interior items, as well as for protecting metal equipment from corrosion. They are perfect for concrete, wood, brick and metal surfaces and fit well on plaster.

The choice of paint for exterior or interior work directly depends on the components contained in the composition.

Oil paint for outdoor use - step by step instructions for application!

Features of oil paints

The main composition of oil paints is standard - it is drying oil and coloring pigments. Previously, only natural drying oil was used, but modern manufacturers prefer synthetic compounds that dry faster. Sometimes natural and synthetic ingredients are blended to give specific characteristics to the finished paint.

According to the ratio of these components, the following types of drying oil are distinguished:

  • alkyd;
  • pentaphthalic;
  • oxol;
  • combined;
  • natural.

Ocher, titanium dioxide, red lead, zinc and lead, as well as other substances with coloring properties are used as pigments.

Oil paint for outdoor use - step by step instructions for application!

Oil paint "Light ocher", "Golden ocher" and "Natural sienna"

Oil paint for outdoor use - step by step instructions for application!

Oil paint "red iron"

In addition, various fillers are introduced into the composition, which increase the water resistance of the paint, give shine, accelerate the drying time - cobalt and manganese salts, talc, barite, mica, kaolin.

Two types of oil paints come on sale - thick-grated and liquid. The first type is a pasty mass, which, before use, must be diluted with linseed oil to the desired density.

Oil paint for outdoor use - step by step instructions for application!

GOST 8292-85.

Thick-grated colored oil paints

The second type is a completely ready-to-use composition, which you just need to mix until smooth. During storage, the pigments settle to the bottom, and when you open the can you can see a thick layer of oil on top. If the paint is too thick, it is allowed to dilute it with turpentine or white spirit, but not more than 5% of the total mass.

Oil paint for outdoor use - step by step instructions for application!

White-Spirit

Pros and cons of oil paints

Benefits of paints on oil-based quite weighty:

  • hygiene;
  • moisture resistance;
  • versatility;
  • aesthetic appeal;
  • ease of application ..

    .

If the painting technology is observed, the surface will be reliably protected from weathering, mold, harmful microorganisms and dirt. The dense structure of the film does not allow dust and soot from exhaust gases to stick in, and therefore cleaning does not take much time.

Oil paint for outdoor use - step by step instructions for application!

Renewal of the facade finish of a wooden house with oil paint

Disadvantages:

  • the service life is 1- 3 years;
  • paint does not let the walls "breathe";
  • low resistance to fading;
  • combustibility;
  • presence of a pungent odor.

Oil paint for outdoor use - step by step instructions for application!

The paint is easy to apply, but the service life is not too long

Specifications

There are several main indicators that determine the choice of oil paint for outdoor use:

  • the proportion of film-forming substances.

    These substances provide the hiding power of the paint layer, therefore, the higher this indicator, the denser the coating is and the better it adheres to the surface. The minimum value is 26% of the total paint mass. At the same time, the larger the mass fraction of film-forming agents, the worse the paint is stored;

  • the fraction of volatile substances. Oil paint fumes have a strong odor and are harmful to humans. It should be noted that at temperatures above 20 degrees, the release of volatile components occurs especially actively.

    In a quality paint, this indicator should not exceed 10%;

  • the degree of grinding of pigments . There are two types of grinding: smooth - more than 90 micrometers, and fine-grained - up to 90 micrometers;
  • viscosity level . The degree of fluidity of the paint, the uniformity and ease of its distribution over the surface, as well as the time of complete drying of the layer, directly depend on the viscosity of the composition. This indicator is considered optimal in the range of 65-140 units, therefore, a lower or higher value immediately indicates a poor-quality paint;
  • the hardness and degree of water resistance of the film . The standard value of the hardness index is 0.

    13 units, the degree of water resistance is from 0 to 0.5.

Oil paint for outdoor use - step by step instructions for application!

Dulux Domus - semi-gloss oil-alkyd paint for wooden facades

In addition to these characteristics, paint consumption and time are taken into account drying. On average, consumption is 150 g / m2, and depends on two parameters - the viscosity of the composition and the absorbency of the working surface. For example, painting a concrete wall will require much less paint than a wooden one with the same area.

It usually takes 24 hours to dry completely, some formulations dry 12 hours.

Oil paint for outdoor use - step by step instructions for application!

Oil paint MA-15

Oil paint for outdoor use - step by step instructions for application!

Oil paint TIKKURILA Teho (Teho )

Marking of oil paints

Alphanumeric designations indicated on containers with paint indicate the type of binder and the purpose of the oil composition:

  • MA - paints based on combined and natural drying oil;
  • GF - on a glyphthalic base;
  • PF - on a pentaphthalic base;
  • PE - on polyester resins.

Oil paint for outdoor use - step by step instructions for application!

Marking and purpose of oil paints and enamels

The first number indicates the area of ‚Äč‚Äčapplication:

  • 1 - for outdoor use;
  • 2 - for indoor use;
  • 3 and 4 - preservatives;
  • 5 and 6 - special paints;
  • 7 - resistant to chemical attack.

The second digit also indicates the type of binder:

  • 1 - natural drying oil;
  • 2 - oxol;
  • 3 - glyphthalic ;
  • 4 - pentaphthalic;
  • 5 combined.

The next digits are the serial number.

For example, MA-15 paint means a composition for external use based on a combined drying oil, and PF-218 means an oil paint for internal use on a pentaphthalic binder with serial number 18.

Oil paint for outdoor use - step by step instructions for application!

Enamel PF-218 (PF-218 KhS, PF-218 GS)

Oil paint for outdoor use - step by step instructions for application!

Zinc thickened white

Oil paint for outdoor use - step by step instructions for application!

Oil-based thick-grated color paints

Prices for oil paint for outdoor use

Oil paint for outdoor work

How to calculate paint consumption

To correctly calculate the total amount of oil paint, first of all, you need to know how much it is consumed per square meter. Each container with paint indicates the minimum and maximum value of the consumption rate in grams or milliliters per m2. This implies only one application layer. If you are going to paint a porous surface (wood, plaster, old brickwork), use a higher value for calculations, if the surface is dense and smooth (concrete, metal), take a lower value.

Multiplying the consumption by the total surface area and by the number of layers, we get the required amount of paint.

Oil paint for outdoor use - step by step instructions for application!

Painting a wooden surface will take a little more paint than a brick or concrete wall

For example, you need to paint a new plank wall 4x2 , 1 m. Paint consumption per square meter is 110-140 g / m2, and it will be applied in three layers. For a tree, we select the maximum value - 140, or 0.14 kg, and proceed to the calculations:

4x2.

1x0.14x3 = 3.528 (kg)

Oil paints are packaged from 0.9 to 25 kg, so choose a volume that is as close as possible to the resulting quantity, and always with a small margin. Please note that some of the paint will remain on brushes or rollers, on the walls of paint containers, something will need to be tinted again.

Oil paint for outdoor use - step by step instructions for application!

Everyone can choose a container of the optimal size

Some manufacturers immediately indicate the area for which a specific volume of paint will be enough. For example, on a 1.9 liter can, a consumption of 10 m2 in 2 layers may be indicated. In this case, you just need to know how many squares you need to paint in order to select the appropriate packaging.

Oil paint for outdoor use - step by step instructions for application!

Consumption of oil paint per 1 square meter

Rules for applying oil compositions

Preparing the surface for painting

To ensure that the oil paint lies flat, does not peel off after drying and does not crack, the base should be properly prepared.

It should be free of cracks, traces of dirt and oil stains, delamination and crumbling areas.

Step 1. Clean problem areas with a scraper or wire brush, and treat stains with solvent.

Oil paint for outdoor use - step by step instructions for application!

Tools for removing old paint from walls

If it is a wooden wall, be sure to check the condition of each board, replace the decayed elements.

Step 2.

If the base has already been painted, the old paint must be scraped off with a brush or treated with a special liquid - a remover. It is applied with a roller to the surface, left for a while, and then removed with a brush with stiff bristles.

Oil paint for outdoor use - step by step instructions for application!

Removing the old paint

Step 3 . All indentations and irregularities are putty. Use a leveling plaster if necessary.

The dried surface is sanded.

Step 4. Finish the preparation by applying a primer. For wood, a primer with antiseptic properties must be used. If the base is porous, primed in 2 layers.

Oil paint for outdoor use - step by step instructions for application!

Colorless primer

Oil paint for outdoor use - step by step instructions for application!

Apply primer with roller or brush

Tip. To obtain a high-quality coating, varnish with the addition of pigment is used for the primer of the plastered walls. The mass fraction of the pigment should not exceed 10% by weight of the drying oil. The mixture is warmed up a little, stirred very thoroughly and applied to the surface with a brush or roller. For the priming of wooden walls, the proportions are different: 100 g of natural drying oil and 600-700 g of thickly grated paint.

Oil paint for outdoor use - step by step instructions for application!

Natural linseed oil

Oil paint for outdoor use - step by step instructions for application!

Pigments

Staining

First select the tool to work with. The fastest and most convenient option is to use a spray gun, but it is advisable to buy it only if you need to paint a lot.

Oil paint for outdoor use - step by step instructions for application!

Multifunctional spray gun from a well-known manufacturer

The use of a roller allows more economical use of paint than using a brush, but the surface should be maximized smooth.

Oil paint for outdoor use - step by step instructions for application!

Paint roller

If the base is textured (wood, brickwork, embossed plaster), choose brushes - wide for continuous application and narrow for painting over corners.Make sure the bristles are firmly attached, otherwise when rubbing the viscous paint, the bristles will remain on the surface and spoil the look.

Oil paint for outdoor use - step by step instructions for application!

Flat paint brushes

Step 1. Prepare the paint: stir the contents of the can thoroughly with a wooden stick or spatula until the composition is uniform.

Oil paint for outdoor use - step by step instructions for application!

Stirring the paint

If you bought thickly grated paint, take a deep container, put the paste into it and pour in small portions of drying oil, each once thoroughly stirring everything with a wooden spatula. The paint is considered ready when it acquires the consistency of liquid sour cream and an even color.

If a film has formed on the paint in the can during storage, it must be very carefully removed using a piece of gauze or nylon cloth.

If the film breaks and its pieces get into the paint, strain the composition through a sieve or the same gauze. It is impossible to paint without straining - pieces of film will stick to the brush and remain on the painted surface.

Step 2. Surfaces that should not get paint should be pasted over with masking tape or treated with soapy water - dilute 30 g of laundry soap in a liter of warm water and apply with a sponge to the base.

Oil paint for outdoor use - step by step instructions for application!

Prepared soap solution

Step 3.

Use a narrow brush to paint over the corners around the perimeter and all hard-to-reach areas.

Oil paint for outdoor use - step by step instructions for application!

Painting the corners

Oil paint for outdoor use - step by step instructions for application!

Painting the facade

Then take a wide brush or roller and start painting in full. The brush is dipped only to half the length of the bristle to reduce runoff and paint splatter. For an even coating, the paint is applied all the time in one direction, rubbing well over the surface.

Oil paint for outdoor use - step by step instructions for application!

How to paint walls

Oil paint for outdoor use - step by step instructions for application!

Roller painting

Important! It is no longer possible to tint the passed areas after 15-20 minutes after application, as this violates the structure of the layer.

The detected defects you can eliminate when applying the second layer, that is, not earlier than in a day.

Step 4. Allow the surface to dry, after which it is processed again. This time the direction of the strokes should be perpendicular to the first layer, otherwise there will be noticeable traces. Do not apply the paint too thickly - this will result in sags that spoil the aesthetic appearance.

When the second layer is dry, it is recommended to wipe the surface with warm water with ammonia (1 part of ammonia for 10 parts of water). This solution gives the coating a pleasant shine, makes the color more even and saturated.

Unused paint in an open container should be poured with a thin layer of vegetable oil on top and sweaty covered with a lid. In this form, it can be stored for a long time, without losing its qualities. You can only merge paint residues together if they are completely identical in composition.

Otherwise, you can end up with a mixture that won't dry out.

To remove traces of oil paint from the skin of your hands, you need to rub them with a cloth soaked in vegetable oil and wash your hands with warm water and soap.

Oil paint for outdoor use - step by step instructions for application!

Apply oil paint

Oil paint for outdoor use - step by step instructions for application!

Highly painted facade

Prices for pneumatic airbrushes, spray guns, texture guns

Pneumatic airbrushes, spray guns, texture guns

Video - Paint oil for outdoor use

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