Choosing and rules for applying brick varnish

For those who want to protect and improve the appearance of brick surfaces, brick varnish is a popular option. Whether you’re working on an indoor or outdoor project, varnishing the bricks can enhance their natural beauty and add a long-lasting layer of protection. For optimal results, choose the appropriate varnish and apply it correctly with the aid of this guide.

It’s crucial to take your project’s particular requirements into account when choosing a brick varnish. Varnishes come in a variety of forms, each intended for a particular use and result. For example, some varnishes have a glossy finish that can bring out the colors in your bricks, while others have a matte look that looks more subdued. You’ll also need to decide between solvent- and water-based varnishes, each of which has pros and cons of its own.

An effective varnish application requires careful preparation. Make sure the brick surface is dry and clean before starting. Eliminate any debris, dust, or outdated paint that might prevent the varnish from sticking correctly. For a deep cleaning, use a brick cleaner or pressure washer if needed. Let the bricks to dry completely after cleaning them before moving on to the next step.

Brick varnish application calls for dexterity and meticulousness. To guarantee an even coat, use a high-quality brush or roller, and work in small sections to prevent bubbles and streaks. For the best protection and finish, you might need to apply several coats of varnish, depending on the kind you select. Make sure you adhere to the manufacturer’s recommendations for drying times in between coats.

Last but not least, with consistent care, your polished brick will continue to look great for many years. To keep the varnish’s protective qualities, periodically check the surface for any signs of wear or damage and reapply the varnish as necessary. Your space’s overall aesthetic can be improved by maintaining the beauty and protection of your brick surfaces with the correct maintenance.

Factors to Consider Application Rules
Surface Preparation Clean and dry the brick surface before applying varnish.
Type of Varnish Choose between water-based or solvent-based varnish depending on the desired finish.
Weather Conditions Apply varnish in dry weather for best results.
Number of Coats Apply at least two coats for a durable finish.
Tools Needed Use a brush or roller for even application.

Properties of the material

Typically, brick walls are uncovered on the outside. This is because the material is of a beautiful type. Nevertheless, extra safeguarding for a private home’s facade is required in areas with severe weather. This will extend the brick’s lifespan and improve its aesthetic appeal.

The properties of all varnish types are essentially the same:

  • protect the surface from moisture penetration;
  • Strengthen the brick, penetrating deep into its structure;
  • have excellent adhesion;
  • insensitive to the effects of chemicals and natural solvents;
  • are not afraid of temperature differences;
  • do not deteriorate under the influence of sunlight;
  • extend the service life of brick buildings;
  • have high decorative qualities;
  • protect the surface from mold and fungus.

Following processing, the brick surface takes on a lovely appearance (referred to as "wet stone," silky, or matte, depending on the type of LCM used), becomes wet and stops becoming dirty, acquiring properties that repel moisture and dirt, and perfectly withstands high temperatures—a crucial characteristic when processing furnaces. Varnish coatings do not wash off easily.


Four categories of ornamental brick varnishes are available for exterior use: solvent, polymer, acrylic, fireplace/stove, and sealing impregnations.

  1. Polymer. The composition includes alkyd resins, acrylic copolymers, as well as organic solvents and various additives. After processing with such compositions, the brick acquires a beautiful appearance “a la wet stone”, while its wear resistance increases. You can work with polymer varnishes even at negative temperatures (up to -10 ° C).
  2. Acrylic. Used to protect brickwork during both external and internal work. One -component, based on organic solvents, the compositions are well absorbed into the brick, protecting it from microcracks, mechanical damage, and prevent the formation of heights.
  3. Solvent. These are varnishes on the same solvents with the addition of silicone resins. They penetrate deeply into the brick, creating a strong coating that does not crack, does not deserve, does not fade. Solvent varnishes are fire hazardous, so you need to work with them extremely carefully.
  4. Fireplace/furnace. KO-85 or KO-815-special refractory varnishes. They are used both for external work and for internal (strengthening the internal surfaces of the furnaces and condensation protection). The application of such varnishes gives brick walls the heat resistance, water -repellent properties, prevents leaching of furnace seams, strengthens the laying of the furnace or fireplace.
  5. Sealing impregnations. Are based on silicone and acrylic resins, give the brick maximum resistance to wear. Impregnation of fluid due to a complex mixture of aromatic and aliphatic solvents, which ensures its high penetrating ability. Such a coating does not turn yellow for many years. The protective layer obtained as a result of processing is resistant to water, chemicals, UV rays, oils, reagents. After applying and drying, gives a brick an unobtrusive shine with the effect "wet stone".


Pufas is a German company that has been in the construction industry for a long time. More than 200 product varieties are produced by the company, such as protective impregnation for brick and varnish, which enhance the brick’s appearance, provide a silky sheen, and prevent color fading.

One reliable supplier in the varnish and color market is "Petri" (USA). Impregnation with the appearance of wet stone is one of its products. This polyurethane varnish shields the brick surface from pollution, abrasion, and damage.

The "neomide Stone" is an impregnation for decorative stone and brick (matte varnish) made by the Russian manufacturer "Neomid." Following processing, a remarkable semi-water coating shields the walls from leaking moisture and preventing the growth of mold and fungus. You can use the product for internal work because it doesn’t smell.

One of the top domestic producers of premium paints and varnishes is the Krasko Company. The following types of varnishes are made to protect the surface of brick and concrete: "Tekil," "leaked," "Aquastone," and "Epakesol." All materials are made with proprietary technologies and premium imported raw materials from reputable suppliers like BASF.

When selecting a varnish for brickwork, consider the composition’s intended use and cost. Certain varnishes may not have any decorative effect; their sole purpose is to shield the surface from atmospheric phenomena.

Whether you want a glossy, matte, or satin look, it’s important to take that into account when choosing a varnish for brick surfaces. The best type of varnish will depend on your unique requirements as well as the environment where the brick is located. Each type offers a different aesthetic and level of protection.

Make sure the brick surface is dry and well cleaned before using any varnish. This step is essential to getting a smooth, even coat and avoiding the varnish becoming sealed in any dirt or moisture, which can cause issues down the road. Make use of the proper cleaning supplies and give the drying process enough time.

Brick varnish should be applied in thin, uniform layers. Applying several thin coats as opposed to one thick coat will ensure a more uniform finish and help prevent drips. For optimal results, adhere to the manufacturer’s recommended drying times between coats.

Brick surfaces can be made to look better and last longer by carefully selecting the appropriate varnish and applying it with care. Brick that has been properly varnished can give both external and interior spaces a stunning, long-lasting finish that offers both visual appeal and useful protection.

Selecting the ideal brick varnish and using it properly will greatly improve the look and longevity of your brick surfaces. To help you choose wisely, think about things like the finish you want—matte, glossy, or satin—and make sure the varnish is appropriate for both interior and exterior use as needed. To achieve a long-lasting, attractive finish, proper application entails thorough surface cleaning, even coats, and allowing enough drying time between layers. Your bricks can have a vibrant appearance and improved resistance to weathering and wear with the appropriate product and application method.

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Daria Yakovlev

Interior designer, author of online color design courses. I will help you create a harmonious interior using color.

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