How to choose a primer

The primer is a liquid composed of mineral fillers and organic or inorganic binding ingredients. Used for preliminary, starting area processing in front of the finish finish. The durability of the adhesion of the spacing layer with a base surface depends on the primer mixture: stability to bundle and peeling, water repellence, mechanical strength, aesthetic appearance of the upper layer. The soil is the main component of the factor in the technological process of finishing, repair, preparatory work.

How to pick up primer according to the characteristics of the component of the base

The base surface should be firmly held off the coating. For these purposes, primer is used, the characteristics of which correspond to the basic requirements: deep penetration and improvement of adhesion with subsequent layers.

Uniform paint, putty, plaster, glue under wallpaper or tile is possible precisely after priming the working surface. The choice of suitable primer is made by such criteria:

1. From the characteristics of the base. It happens:

• little absorption
• absorbing
• high absorption.

Used superficial penetrating primer.

2. From the front of the work:

• for the preparation of,
• alignment,
• increase or reducing moisture
• increase clutch with base layer.

Universal superficial soils are used.

Industrial soils are divided into groups of their intended:

1. Primary preparation of basic bases.
2. Raising the adhesion between the base layer and finishing.
3. Surface ground mixture.
4. Penetrating ground.

Classification on the part of the binder ingredients or on the basis of:

1. Acrylic. Water soluble primer universal application. Designed to cover new and old plasters, cement, concrete, brick, wood surfaces, DBP, DCP.

Plus funds:

• weak smell
• fast drying.

Minuses:

• does not protect surfaces from ferrous metals.

2. Alkyd. Optimal means for processing wood areas. "Breaks" the structure, increases the susceptibility of finishing coatings.

Divided into two types:

• based on zinc phosphate. The anti-corrosion preparation is applied as a basis for alkyd dyes;
• basis with chromat zinc. It has a wide scope of operation, not only on wood surfaces.

Advantages of the drug:

• drying layer to 15 hours,
• time to deeply penetrate the structure of the treated platform,
• it gives a uniform distribution on vertical and horizontal planes.

Disadvantages:

• the inability to use on plaster objects.

3. Grid. Refers to starting soils for metal structures. Disadvantage: Long drying period - 1 day, not used with medium and high humidity.

4. Mineral, on cement basis. Used for starting processing, correction of the surface of internal foam concrete, brick, gas-silicate, clay masonry.

Advantages: Quickly fills emptiness and porosity.

Disadvantages: not used for wood processing, PBC surfaces.

5. Chlorvinyl. The universal composition of the drug is designed for high-quality processing of metal products and planes. It lies well on the plaster of the brick and concrete surface even at a temperature of 50.

Advantages: Forms the strength of the coating to the temperature differences, quickly dries - 1 h.

Disadvantages: not used for internal work.

6. Polyvinila acetate. Specific spectrum of application. Used under the basis for polyvinyl acetate paint.

Advantages: dries quickly at a temperature of 20-240, less than half an hour.

Disadvantage: a narrow spectrum of application.

7. Polystyrene. Well falls on plaster and wood.

Disadvantage: The composition contains a toxic diluent, limited to the use of the room.

8. Phenolic. It is intended for the starting finish of the wood and the clean surface of the metals.

Advantages: dries quickly, protects against moisture and corrosion.

Disadvantages: Contains a bat, long dries from 10 to 12 hours.

What kind of primer to choose for wood surface

For wood, several types of soil are used:

1. Standard. The basis is the organic solvent. Preferred preparation for finishing natural and artificial wood coatings. The layer of dried soil does not give other layers of the finish to absorb into the wood.
2. Water based with acrylic. Plus this drug in the absence of a sharp unpleasant odor. He dries quickly, does not forms on the plane of the flows.
3. Aluminum. Specific primer designed to apply to the specific tree of wood: tick, coniferous, deciduous with increased resinity, aphrrimeosia.
4. For fibreboard, DBP, MDF. The extruded products are very poorly absorbed by the applied solutions. Masters always have difficulties in the selection of soils. A narrow specialty water-based primer, created for building materials with low adhesion, penetrates well in the pores of extruded wood, does not slide from the surface, it is easy to apply.

What kind of primer to choose for masonry from concrete or brick

Concrete and brick masonry have a cellular spatial system. For processing surfaces of these materials, there are specialized soils:

• Antisher. Building materials contain a large concentration of alkalis. This drug is resistant to aggressive alkaline medium and substances, reduces the negative effects of caustic and does not give it to destroy the finish coating.
• Stabilizer surfaces. It is used as a binder for crumbling, peeling construction materials, limits the absorption of the old surface of the plaster, stabilizes the volumetric and preplanted layer of the base, strengthens its structure. Industry manufactures ground in the form of a transparent or white solution. The ideal means for processing limestone areas intended for applying emulsions or facade dyes.
• Primer for concrete. The characteristics of the concrete surface - porosity with a low clutch. To the vertical concrete wall, it is very difficult to properly and maintain a layer of finishing layer more than 0.5 cm. Processing and sealing of the concrete surface with these soil increases the adhesion property, it allows you to apply a thick layer of new plaster, prevents the subsequent shower of the finish. It is applied in the usual way: brush, roller, pulverizer.

• Water-repellent primer. The cellular surface of the masonry has a greater moisture characteristic. To increase the water-repellent properties of stone masonry, primer is used. The quality of the application process is facilitated by adding a non-stroke dye to the preparation. It helps to apply a primer to the site without a bassin. Hyd, dye becomes transparent or discolored.
• The drug to repulsion mud. It is used to improve the aesthetic type of frontal surfaces. The drug is applied on top of the paint on the masonry. The transparent protective layer of the drug contributes to a smooth spread of precipitation vertically, prevents the formation of dirty drills, reduces the sticking and deposition of dirt.
• Alcohol quick-drying. The primer is designed to mask the problem spots on the painted surface. It has a white color, the dark appealing spots masks well, prevents their speech on new finishing layers. Universal means for applying wood treated wood, tar, bitumen. Denatet is used as a solvent to the primer. The freshly mounted layer after 10 minutes becomes dry to the touch. Full drying occurs after half an hour.

How to choose a primer for metal

Metal primer has the main purpose - corrosion protection. The composition of primers for metal surfaces necessarily includes rust inhibitors.

Industrial processing drugs:

• Iron Alkyd Surik. The most famous of soil-protective fluids. Used for all metal and steel surfaces. To create a reliable basis for finishing, it is enough to apply one layer of turkey.
• Water based ground. Quick-drying fluid is used to treat the surfaces of most metals. Apply directly to a freshly prepared metal surface. Not applied on galvanized surfaces.

• Anticorrosive. It is used on metal surfaces with deep rust lesion. Before applying the drug from the old surface, loose oxidized pieces are cleared.
• Universal zinc-phosphate. Used for non-ferrous and black metal surfaces. Well lies and interacts with galvania and aluminum.
• For galvanized metal. Gyankovka is considered a problem surface due to low adhesion. Any finishing layer: putty, paint, falls unevenly, slide, do not give a smooth layer. The primer with the addition of zinc phosphates and the anti-corrosion substance forms a passivating film on the treated galvanized surface, increases the surface roughness under the subsequent application of paint or putty, provides protection against corrosion.
• Grinding for the radiator. It is used for additional protection, over the factory layer of primer, before painting. Protects cast iron from corrosion, increases heat transfer, increases the grip with paint. It is selected equally from the paint brand by manufacturers.

How to choose a primer or thresholder

When working with artificial materials, it often has to look for a means for masking spots, carry out processing from mold fungi. For these purposes, the industry produces thresholds, primitiveness of a unified, specialized composition:

• For polyvinyl chloride plastic, PVC. Used to update window and door frames from PVC. Provides good adhesion of the top layer of finishing. It is used to process the joint of the plastic frame with concrete under the subsequent applying of paint or decorative trim from plaster.
• For ceramic tiles. Nanogrunntovka. Used in the production of ceramic tiles. Provide a good grip with a gloss, strengthen the protection against mechanical microstars, prevent the bundle of finishing layers on the surface of ceramics.

• For melamine. Used for small household repair works of kitchen furniture. It is used as a basis for glossy or half-wood paint.
• For masking spots. A universal means that allows high-quality disguise on the finished surface of difficult stains from nicotine, divorce on the ceiling from the flow, divorce and "rusty" spots from the flow of plumbing. Serves as the basis for emulsion or oil paint.
• For wet spots. Decorative primer. Does not eliminate the cause of the flow, but it masks gray molds on the walls, the ceiling indoors.
• Universal. For large-scale works of priming large heterogeneous surface material: concrete, brick walls, wood plinth or PVC, oak, ash, pine, or PVC, metal and brick surfaces.

How profitable to buy a primer

Presentation of a profitable purchase each is at the discretion and its budget. The modern service sector in the Internet space is the most comfortable and attractive for wholesale purchases, acquiring small batches. All goods in the online store is supplied with a detailed description of the manufacturers and the composition of the funds. Recommendations for applying and engineering safety work are given. The online store of construction chemistry will suit people with allergies to smells. The goods are visually in full, clearly visible, but without accompanying flavors.

The cost of soil depends on the brand of the manufacturer, the composition and volume of packing. For example, the Ukrainian manufacturer offers universal primers whose price for 5 liters or 10 kg from 15 to $ 30. Imported production will be 5-25% higher.

Quality preparation of areas for subsequent application of materials is an important completion step to preserve the main coating, to neglect this stage of construction and finishing work.