Microcement is a versatile material that fits to any decorative styles, but its application requires experiences and good knowledges of the smallest details in order to achieve professional results. In this article we will explain step by step how to apply microcement on floors and walls.
The application process depends on the surface to be coated and its state . It is necessary to take into account whether the surface is exposed to a frequent transit area, high temperatures, humidity or the sun. It is also necessary to consider whether the microcement is to be applied in an interior or exterior space.
The state of the substrate is an important factor for the applicator, who needs to consolidate the surface before thinking about applying the chosen product.
Application of microcement on the floor using a rubber trowel
The decorative solutions offered by microcement are unique, because its application results present a high decorative value. The most common application of this material is on floors and walls in bathrooms, kitchens, as well as in outdoor spaces.
In MyRevest we have a wide range of products to create or to coat kitchens and terraces. We manufacture a microcement that offers maximum hardness, flexibility and excellent workability. The advantages of this product are not only the versatility but also its continuous seamless appearance that does not crack. In other words, a continuous surface that is easy to clean and nowhere the dirt may stay.
Applying our microcements means giving any surfaces an exquisite style to achieve elegant atmospheres.
The application of microcement on a tiled floor is an excellent option for speeding up renovations because it is not necessary to lift the tiles to cover the surface.
In addition, microcement adheres the smooth or textured surfaces without problems, thanks to the use of primers and the resins with which it is formulated. The technique of fresco-on-fresco, i.e. applying on a wet layer, is not applicable on tiles. If one of the coats is not dry, moisture will seep through and the tile joints will be noticeable.
The application of preparatory microcement such as MyBase allows the joints of the tiles to be levelled so that they are at the same height as the rest of the paving. After applying this product, it is necessary to leave it to dry for 24 hours and then sand the surface with 40-grit sandpaper.
Rubber trowel to spread the microcement on the pavement
The primer for non-absorbent surfaces consolidates the substrates and improves the adhesion of the microcement layer. Once an adhesion promoter or bonding agent such as MyPrimer 200 has been applied, the glass fibre mesh should be placed
The primer layer, which is used to facilitate the bonding of the microcement with the existing substrate, needs a drying time between 30 minutes to 24 hours. The time depends on the environmental conditions at the working place and the primer applied.
The third step is to apply the first coat of unpigmented microcement preparation. This layer needs a drying time of 12 hours and then sand with 40-grit sandpaper to correct any imperfections.
The second coat of adhesion promoter for non-absorbent surfaces, such as MyPrimer 200, needs a drying time of 30 minutes.
Apply the second coat of microcement preparation with the desired pigment. This coat needs a drying time of 24 hours and snad with 40 grit sandpaper.
Application of micro-cement preparation on a non-absorbent floor surface
With the substrate levelled, consolidated and the preparatory microcement ready, it is time to seek a professional, high quality finish. To do this, the first coat of microcement for floors must be applied. This layer needs a drying time of 3 hours and then sand with 80-grit sandpaper
Apply the second coat of microcement already pigmented for floors and let it dry for 24 hours. Then sand the substrate with 80-grit sandpaper. For the drying times, always take into account the temperatures and environmental conditions of the working place.
Once the preparatory and finishing microcement has been applied, all that remains is to complete the process by sealing the surface. Two coats of a water-based acrylic varnish such as MyCover must be applied, which acts as a pore-sealing primer and helps to waterproof the surface.
The first coat of acrylic varnish needs a drying time of 4 hours. The second coat needs a drying time of 12 hours and then sand the surface with 400 grit sandpaper
The sealing process is completed when two coats of MySealant 2K polyurethane varnish are applied. They are available of super-matt, matt, satin and gloss finishes. Drying time between coats is from 12 to 24 hours, depending on environmental conditions. After the first coat, the surface must be sanded with a 400-grit sandpaper, but the last coat does not need to sand
Application of water-based polyurethane varnish to seal the microcement coating and makes more beautiful the finish
As we have already mentioned, the versatility of microcement makes it the ideal material for covering any type of substrates. It is perfect to coat absorbent cementitious surfaces without having debris.
On absorbent surfaces, such as cement, concrete or self-levelling; MyResin acrylic resin is used as a primer to improve the adhesion of the microcement.
Application of primer on an absorbent surface to consolidate the substrate and facilitate adhesion of the microcement
With the substrate consolidated and well prepared, we should place the fibreglass mesh and then apply the preparation microcement without pigment. The mesh can prevent the future cracks in the coating. The preparatory layer of microcement needs a drying time of 3 hours and then should be sanded with 40-grit sandpaper
Apply the second coat of preparatory microcement, and leave it three hours to dry. Once the surface is completely dry, sand it with 40-grit sandpaper.
Before starting the process of sealing, two coats of microcement floor finish must be applied. In the case of MyFloor, the first coat must be applied with pigment and left to dry for 3 to 5 hours. The second coat is applied with pigment and needs a drying time of 24 hours.
After drying, the surface must be sanded with 80 grit sandpaper each coat.
To complete a professional seal, two coats of pre-sealing primer, such as MyCover acrylic varnish, must be applied. The first coat of varnish needs a drying time of 4 hours and the second one 12 hours. Once the second layer is dry, it should be sanded with 400 grit sandpaper.
The entire process of applying microcement, the same as that of tile flooring, is completed when two coats of sealing varnish are applied. In MyRevest we have MySelant, a water-based polyurethane varnish with a high resistance to abrasion. After the first coat, allow 24 hours of drying time and sand the surface with 400 grit sandpaper. It also takes 24 hours to dry after the second and also the final coat.