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Microcement Coating in Spain

Microcement is a decorative seamless coating used for finishing floors, walls, staircases, bathrooms, kitchens, terraces, and other surfaces. It is valued for its modern appearance, minimal thickness, and the ability to create an almost continuous surface without traditional tile joints.

However, the final result depends on more than just the microcement itself. The substrate must be strong, stable, properly prepared, and compatible with the selected coating system. Cracks, substrate movement, residual moisture, or mistakes made during the application of individual layers may become visible after the finish has been completed.

In Spain, it is also important to take into account the conditions in which each particular surface will be used. For outdoor areas, intense sunlight, heat, rain, and temperature changes are important factors; bathrooms and showers are exposed to constant moisture; and coastal regions may have higher humidity and more demanding environmental conditions.

Particular care is required when applying microcement to terraces, areas around swimming pools, and over existing tiles. Whether this type of finish is suitable depends not only on the desired design but also on the condition of the existing substrate, waterproofing, slopes, joints, and the technical requirements of the selected system.

Our service can help you find a trusted microcement professional near you who can assess the substrate, select a suitable system, and apply the coating with the specific conditions of your property in Spain in mind.

How Microcement Is Applied

The process begins not with choosing an attractive shade but with inspecting the substrate. The professional assesses its strength, levelness, moisture, existing cracks, old tiles, paint, or other coatings and determines what preparation will be required.

The surface is then cleaned and repaired. Where necessary, levelling, crack treatment, reinforcement of specific areas, priming, and other preparatory work required by the selected system are carried out.

Once the substrate has been prepared, the necessary base and decorative microcement layers are applied in sequence. The required drying time is observed between stages, and the surface is treated and prepared before the next layer is applied.

The texture is created by hand, and it is at this stage that the characteristic appearance of microcement develops. Once the desired decorative result has been achieved, the protective system is applied — usually including the primers and finishing coats specified by the manufacturer.

After the work has been completed, the coating needs time before it can be used normally. Even if the surface already appears dry, the protective layer may not yet have reached its final performance characteristics.

For properties in comunidades de propietarios and urbanizaciones in Spain, it is also worth checking the rules for renovation work in advance, including permitted hours for noisy work, the use of communal areas and lifts, protection of access routes, and the disposal of construction waste.

How to Choose a Microcement Specialist

Microcement may look minimalist, but applying it correctly requires considerable care. Poor preparation, incompatible materials, or failure to follow the correct sequence of layers can result in cracks, stains, delamination, or an uneven appearance.

1. Specific experience with microcement.
   General painting or plastering experience is not necessarily enough. It is useful to look at the professional’s actual completed projects — floors, walls, bathrooms, staircases, or exterior surfaces — depending on the type of work you need.
    

2. Assessment of the substrate before preparing a quote.
   The specialist should see the surface or obtain enough information to understand its condition. Microcement can be applied to different substrates, but concrete, screed, tile, and plastered walls each require different preparation.
    

3. Attention to cracks.
   If the substrate already has cracks, simply covering them with a decorative coating is not always a solution. Their nature should first be assessed to determine how stable the substrate actually is.
   Active cracks or structural movement may later become visible through the new coating.
    

4. Using one manufacturer’s system or compatible materials.
   It is useful to understand which primers, base coats, reinforcing materials, decorative compounds, and protective finishes the professional intends to use. A clearly defined, compatible system is preferable to an arbitrary combination of unrelated materials.
    

5. Experience in wet areas.
   For a bathroom or shower, the specialist needs to understand more than just the decorative side of the work. Waterproofing, slopes, drains, junctions, and proper surface protection are particularly important in these areas.
    

6. Experience with exterior applications.
   Not every system suitable for a living room is appropriate for an open terrace. For exterior surfaces in Spain, sunlight, heat, rain, temperature changes, and the conditions of the particular region all need to be considered.
    

7. Understanding how the surface will be used.
   A bedroom floor, shower, kitchen splashback, and area around a swimming pool are exposed to very different conditions. The professional should consider the intended use of the surface when selecting materials and the finishing protection.
    

8. Real colour and texture samples.
   Microcement is a hand-applied decorative finish. Small variations in shade, trowel movements, and surface pattern are part of its character.
   For this reason, it is better to agree in advance not only on the colour name from a catalogue but also on the desired texture, degree of uniformity, and level of mattness.
    

9. A clear quotation.
   The quotation should ideally show the complete scope of work: substrate preparation, repairs, primer, reinforcing layer where necessary, microcement, the protective system, treatment of junctions, and any other required stages.
   If one quotation is significantly cheaper than another, it is useful to compare not only the final price but also exactly what is included.
    

10. Timescales and technical drying intervals.
    Microcement is applied in several stages. Trying to speed up the process excessively can affect the final result, so it is important to understand the overall duration of the work and when the room or surface can actually be used.
     

11. Warranty and maintenance recommendations.
    Once the work is complete, the professional should explain when the coating can be exposed to water, cleaned, subjected to loads, and which products can be used for maintenance. It is also advisable to agree in advance on the warranty conditions and what will happen if defects appear after completion.

Frequently Asked Questions (FAQ)

▸ Can microcement be applied directly over existing tiles?

In many cases, yes. This is one of the reasons microcement is often chosen for renovation projects in Spain: if the existing tiles are firmly attached, it may be possible to update the interior without completely removing the old covering. However, the professional should first check for loose tiles, hollow areas, cracks, and other substrate problems. Tile joints also require preparation; otherwise, their pattern may eventually become visible through the new surface.

Before work begins, it is important to understand not only the condition of the tiles themselves but also the condition of the substrate underneath, how the joints will be treated, and whether additional reinforcement or levelling will be required. If individual tiles are loose or the substrate is unstable, the underlying problem should be corrected before the microcement is applied.

▸ Does the old covering have to be completely removed before applying microcement?

Not always. If the existing tiles, concrete screed, or another surface are strong, stable, and compatible with the selected system, they can often be retained as a substrate after appropriate preparation.

Removal is usually necessary when the existing covering is coming loose, is seriously damaged, or is hiding an unstable substrate. The decision is therefore best made after an inspection: sometimes keeping the old surface genuinely saves time, while in other cases it simply leaves an existing problem underneath the new decorative coating.

▸ Can microcement be applied directly to concrete or screed?

Yes. Concrete and cement screed can provide a suitable substrate for microcement provided they are strong, sufficiently level, and in appropriate condition.

Before work begins, moisture levels, cracks, uneven areas, and weak or dusty sections are usually checked. If the substrate is new, it also needs sufficient time to dry and stabilise. It is worth agreeing in advance whether additional levelling, crack repair, or a special primer will be required.

▸ Can microcement be used to level an uneven floor or wall?

Microcement can compensate for minor surface imperfections, but it should not be used as a full-scale thick levelling layer. Where there are significant differences in level, the substrate is normally levelled before the decorative coating is applied.

This is particularly important for floors. Attempting to compensate for substantial irregularities with microcement itself can result in uneven coating thickness and a less stable finish. The required preparation should therefore be determined during the initial inspection.

▸ Does microcement really create a completely seamless surface?

Visually, it can create a large continuous surface without the familiar grid of tile joints, which is one of the main reasons microcement is popular in contemporary interiors.

However, the absence of decorative joints does not mean that existing structural or movement joints can simply be covered over. Where such joints form part of the construction, the professional needs to determine how they should be treated. This is particularly important on large surfaces, terraces, and areas where movement of the substrate may occur.

▸ Why can cracks appear in microcement?

The cause is not always the microcement itself. A thin decorative coating works together with the substrate, so existing or new movement in screed, concrete, tiles, or other structural elements may become visible at the surface.

Before application, the professional will normally assess existing cracks. A small stable crack and an active crack that continues to open require different approaches. If there are numerous cracks, it is better to identify their cause first and only then decide how the substrate should be prepared.

▸ Is microcement suitable for bathrooms?

Yes. Microcement is often used in bathrooms on floors, walls, countertops, and other surfaces. It can create a continuous contemporary interior with very few visible joints.

However, the decorative layer is not the only consideration in a wet room. Waterproofing, the areas around the bath and shower, pipe penetrations, floor-to-wall junctions, and the final protective coating all require particular attention. It is better to establish in advance which surfaces will be regularly exposed to water and what system is intended for those areas.

▸ Can microcement be used directly inside a shower?

Yes, provided the selected system is designed for constant exposure to water and the substrate has been prepared accordingly. In practice, the quality of this type of finish depends greatly on what lies underneath the decorative layer.

In a shower, waterproofing, the correct slope towards the drain, treatment of corners and junctions, the area around the drain, and the final protective coating are particularly important. Microcement should not be treated as a way to compensate for inadequate waterproofing — all of these elements need to function as one complete system.

▸ Is microcement slippery when wet?

That depends on the texture and the specific finishing system. A surface intended for a dry living room may be smoother than one designed for a shower, terrace, or swimming pool area.

If the floor will regularly become wet, slip resistance should be considered before the final texture is selected. This is especially important for walk-in showers, exterior stairs, and areas around swimming pools.

▸ Can microcement be used in a kitchen?

Yes. It can be used on floors, walls, splashbacks, kitchen islands, and certain other surfaces. Its seamless appearance works particularly well in contemporary kitchens and makes it possible to use the same material across several different areas.

However, the conditions of use vary. A splashback, for example, is regularly exposed to grease and water, while a work surface is also subject to mechanical wear. It is therefore worth deciding in advance exactly where the microcement will be used and what protection will be required against stains, water, and household cleaning products.

▸ Is microcement suitable for a kitchen countertop?

It can be, provided the selected system is designed for this type of use, but the demands placed on a countertop are considerably greater than those placed on an ordinary wall.

A countertop is exposed to water, grease, food stains, hot cookware, and the risk of mechanical damage. Before application, it is therefore worth discussing not only the colour and texture but also the limitations of the selected material, the protective layer, suitable cleaning products, and everyday care requirements.

▸ Can microcement be applied over underfloor heating?

In many cases, yes, provided the selected system is compatible with underfloor heating and the screed has been correctly installed and is stable.

Particular attention should be paid to existing cracks and temperature-related movement in the substrate. Before work begins, it is useful to agree on how the heating system should be prepared and, after completion, when and how it can be switched back on. Rapid heating of a newly finished surface is undesirable, so the initial start-up should follow the recommendations for the system being used.

▸ Can microcement be used on an open terrace in Spain?

Yes, but this requires a system specifically designed for outdoor.