How to apply concrete contact to whitewash, gypsum plaster, oil paint and what is the best way to apply it to walls

Learning how to use concrete contact can be very helpful if you’re getting ready to paint a new room or update your walls. A primer called concrete contact is made to improve adhesion; it’s particularly helpful for challenging surfaces like oil paint, gypsum plaster, and whitewash. It’s imperative to do the prep work correctly if you want your new paint or finish to adhere well and look fantastic.

It can be especially difficult to apply concrete contact to surfaces that have been coated in gypsum plaster or whitewashed. These materials don’t always hold new coatings well because of their smooth, slightly porous texture. By filling in that space, concrete contact makes the surface more suited for your new layer. Using the proper application technique can help you avoid future headaches and save time.

Things become a little more complicated when it comes to oil paint. New coatings have a notoriously difficult time adhering to oil-based surfaces. Here, using concrete contact aids in removing the slippery surface and improves the foundation for your subsequent layer. It’s crucial to take the correct actions to guarantee that your new finish adheres properly and lasts a long time.

We’ll walk you through the best methods for applying concrete contact to these various surfaces in this guide. We will cover every aspect of wall preparation and product application, so you can achieve a smooth, long-lasting finish. These tips will help you complete the task correctly, regardless of whether you’re a do-it-yourself enthusiast or simply want to update your walls.

What is concrete contact

Relatively recently, a primer based on concrete contact hit the Russian market. Nonetheless, it became well-known very fast. The substance is employed to fix different building materials with consistency. It works well with wood, metal, and glass and improves the adherence of porcelain, ceramic, and plasterboard tiles.

Concrete contact manufacturing companies closely guard their product recipes. Still, the fundamental performance characteristics are the same across brands.

The substance includes fillers and polymer additives in the form of talc, quartz sand, and other ingredients. The substance is simple to apply to surfaces and appears pinkish. The composition and ratios of the material’s constituent parts determine its properties. While some solutions are intended for outdoor use, others are meant to be used indoors.

On the other hand, there are also universal developments that can be purchased for various situations. The material is particularly sought after because of its capacity to enhance adhesive properties.

Applying concrete contact to surfaces such as oil paint, gypsum plaster, or whitewash requires knowledge of the appropriate techniques for each kind of wall. This tutorial will take you step-by-step through simple procedures to guarantee a solid bond and seamless application. To ensure that your concrete contact adheres well and lasts a long time, we’ll go over how to appropriately prepare each surface and select the appropriate techniques. These pointers will help you achieve the best results whether you’re updating your walls for a new finish or getting ready for a fresh coat.

Purpose and features

To create rough surfaces, use Concrete Contact, an acrylic adhesive additive made of quartz particles. The composition’s enhanced moisture permeability is one of its key characteristics.

1. Under putty.
2. For plastering.

1. The material is suitable for processing vertical and horizontal structures and promotes improved adhesion of building materials.
2. BK is water-resistant, since it creates a special film on surfaces. Due to this property, it is used as a hydro-insulator when arranging floor coverings.
3. The drying time of the additive varies from 4 to 6 hours and is determined by the temperature and humidity of the environment. If the humidity is high, you will have to wait at least a day before starting the next stage. A similar requirement should be followed when carrying out outdoor work.
4. Long service life. Experts say that if the application rules are followed, BC will be able to maintain its performance characteristics for 80 years.
5. It is quite easy to work with factory-made compounds. You can use a roller, brush or other construction tools to apply them. Due to its ease of placement, the primer is suitable for both experienced builders and beginners.

The bactericidal elements found in concrete contact effectively combat mold, fungal microorganisms, and insects on treated surfaces. Because of the material’s neutral acidity, there is no chance that it will react negatively with lime solutions or corrosion processes. For easier application, coloring pigments can also be added to the mixture.

Take careful note of all the properties and shelf life of the concrete contact before applying it under tiles or gypsum plaster. They have to be mentioned in official documentation or on the packaging.

Application area

Repair work became much simpler when the first batches of concrete contact were introduced to the construction market. There are several uses for this kind of primer, including processing:

1. Concrete, brick or cinder block walls to improve adhesive properties.
2. Gypsum plasterboard surfaces to reduce their porous structure.
3. Elements with glossy surfaces.
4. Ceiling structures before whitewashing.

The material is suitable for finishing and repair work on the outside as well as the interior. Monolithic structures with low moisture permeability are processed using it. Additionally, oil paint in BC can be used to prepare surfaces for future decoration or plaster and putty application.

Conditions for wall processing

Following a few guidelines will make applying concrete contact to walls more convenient.

1. Repair activities are carried out only at positive temperatures.
2. If there is high humidity outside or inside the premises, the operational properties of the BC will be greatly reduced. To avoid negative consequences, you cannot start work when the air humidity is above 70%.
3. The drying time of the primer is at least 12 hours. Only after this period has expired can you proceed to the next stage.
4. The structure to be treated should be carefully prepared. It is cleaned of dust and dirt using detergents. Any irregularities and defects are leveled.

How to apply to walls

When applying the primer, you should meticulously prepare the surface for the best outcome:

1. It must be cleaned of dust and dirt. Unnecessary pieces of plaster are removed with a metal brush.
2. The joints between reinforced concrete panels or plasterboard slabs are covered with a primer composition. This will protect the plaster from crumbling.
3. If the surface is clean and smooth, it must be treated with a soda solution or a special detergent on a synthetic basis. This approach will remove the greasy film.
4. BC is available in liquid form, but before applying it is thoroughly mixed with a construction mixer to get rid of large impurities of sand and cement.

Turning off the electrical network is necessary even before priming because wet wiring can result in a short circuit. Several devices can be used with the composition.

1. Brushes.
2. Roller.
3. Brushes.

Hard-to-reach areas are sprayed with a specialized spray gun.

Because BBC has a consistency akin to water-based paint, using it is simple and comfortable. To keep the thick fraction from settling, the product needs to be constantly stirred while doing repairs.

Although it is very straightforward, there are several subtleties in the priming process.

1. When choosing a tool for applying a primer, use a wide brush – a maklovitsa. It reduces unnecessary consumption of the composition and fills small pores and holes in the structure. Also, the primer coating is applied with a construction roller.
2. When the BK is applied to the surface and dries, it is necessary to assess the evenness of the layer to avoid gaps. External inspection is not a complicated procedure, since.. most primers have a pink tint, and gaps are visible after drying.
3. If irregularities or defects are detected, they must be sealed with a second layer.
4. Optimum consumption of building material varies from 200 to 500 g per m². Exact figures depend on the degree of moisture absorption and the type of surface being treated. The primer is absorbed most well by concrete and brick walls.

All construction equipment needs to be cleaned under running water after the job is finished. Washing off the primer will be challenging if you forget to do this.

Water is typically not added when applying the dispersion, but when finishing individual materials, it is preferable to dilute the composition with liquid while paying attention to the proper component ratios and proportions.

Using a spatula, remove any weak finishing layer before applying a basic primer that leaves a deep effect on the surface.

1. Removes dust and dirt.
2. Reduces porosity.
3. Reduces the consumption of concrete contact.

It is preferable to use a hammer drill and a scraper to beat off any paint that begins to peel.

The packaging indicates how long the concrete contact will take to dry completely. The application technology can take anywhere between two and twelve hours to complete. The temperature of the surrounding air determines the precise time.

You are not permitted to begin finishing before or after the designated time. The second scenario will result in a dusty surface with deteriorating adhesive qualities. Should you fail to complete the task within the initial two days, the wall will accumulate a lot of dust and require additional cleaning.

The dispersion will no longer have its original characteristics when exposed to negative temperatures. It should not be kept in the cold, and applying the mixture should only be done once the air has warmed to +5°C.

Selecting the best concrete contact compound can be challenging due to the variety available in the Moscow market. Good reviews are given to products made by "Ceresit," "Knauf," or "Bolars." However, you must visit authorized retailers in order to buy the original mixture.

1. Ceresit. Primer is intended for preparing surfaces before finishing with plaster, putty or tiles.
2. Knauf. Is a good composition for smooth monolithic structures, reinforced concrete products and wet floor screeds.
3. "Bolars". Produced by a domestic company and characterized by improved performance properties. Can be used for both indoor and outdoor work. Due to its resistance to moisture, it is suitable for application to the floor under the tiles in the bathroom.
4. "Starateli". The trade mark produces universal concrete contact, containing special additives with water- and frost-resistant properties.

It is preferable to buy one bucket of material and determine whether it is appropriate for finishing in order to avoid incurring unnecessary expenses when finishing large objects.

Knowing how to apply concrete contact correctly is essential for priming walls for a new coat of concrete. For optimal adhesion and durability, different techniques are needed for different surfaces, such as oil paint, gypsum plaster, and whitewash. You can create a solid, long-lasting connection between the old and new layers by adhering to these recommendations.

Before applying concrete contact to whitewashed walls, any loose or flaking material must be removed. Whitewash can be a little powdery, so you’ll need to brush or scrape it well. Applying a concrete contact primer after the surface has dried and cleaned will aid in the proper adhesion of the freshly applied concrete layer, providing a strong base for your finish.

Because gypsum plaster surfaces are frequently softer and more porous than other materials, they can be challenging to work with. Make sure the plaster walls are dust-free and completely dry before beginning any preparation. A light sanding of the surface can improve the concrete contact’s grip. Apply the primer evenly after sanding, being careful to completely cover all surfaces to prevent any weak spots.

Oil paint’s smooth and occasionally glossy finish presents a special challenge. Here, it’s important to clean the surface thoroughly and remove any gloss. To improve the adhesion of the concrete contact, you can roughen the surface with sandpaper or a deglosser. The bond between the paint and the freshly laid concrete will be strengthened by using a coat of concrete contact after the surface has been prepared.

Applying concrete contact to walls always necessitates meticulous planning and attention to detail. Utilize the appropriate techniques for each type of existing coating and begin with a clean, dry surface. This guarantees that the freshly applied concrete layer adheres properly and functions well, giving you a strong and long-lasting finish. You’ll be able to take on your wall projects with confidence and produce results that look professional if you follow these tips.

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