Microcement Sanding

The Importance of Sanding in the Application of Microcement

Sanding microcement is one of the most critical steps in its application process. While every stage in the application is important, sanding each layer—from the tile grouting (if present) to the base and finish coats—is essential to achieving a flawless result.

Sandpaper Selection

Choosing the right sandpaper is crucial for two reasons:

To prevent discoloration of the microcement, especially in lighter colors.
To effectively work on the hard surface of the material.

Using high-quality sandpaper ensures a precise finish, as the final result depends significantly on this choice.

Sandpaper Grain and Application

The grain size of the sandpaper must correspond to the granulometry of the microcement layer. For base coats, a 40-grain sandpaper is typically used, while fine microcement layers require a 220-grain sandpaper. The grain should also be selected based on whether sanding will be done manually or with an orbital machine, as this affects the outcome

Sanding Procedure

Sanding should always be performed with control to avoid removing too much material and exposing previous layers. Maintaining the minimum thickness of each layer is essential, and only superficial abrasion should be applied. The process usually involves circular motions, using one hand to feel for irregularities and sanding until they are minimized.

Other Considerations in Sanding

Importance of Dry Layers

Sanding must only be carried out when the layers are completely dry. Attempting to sand wet microcement can damage the surface. Additionally, the trowel application of each layer plays a vital role in the sanding process. A smoother application reduces the time needed for sanding and minimizes imperfections.

Dust Removal

After sanding, it is essential to use a vacuum cleaner to eliminate any residual dust on the surface. This prevents adhesion problems between layers and ensures the next steps proceed without issues.

Professional Attention to Detail

In professional microcement applications, careful attention is given to each step to ensure a perfect finish. The experience and precision applied during the process guarantee superior results in every detail.

For more information, visit the CimentStudio website and discover how expertise transforms spaces with microcement.