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Microcement Sanding
The Importance of Sanding in the Application of Microcement
Applying microcement is a technical process that requires precision and attention to detail. Every step is essential to achieve a flawless finish, and sanding is no exception. However, it is often undervalued, which can compromise the final result.
In this article, we at Lunik aim to highlight the importance of sanding in the microcement application process and how it can significantly affect the quality of the finish.
The Importance of High-Quality Sandpaper
Our first piece of advice is to use high-quality sandpaper. Here’s why:
- Prevents discoloration: Low-quality sandpaper can stain the microcement during the process.
- Ensures effective sanding: Only high-quality sandpaper can handle the hardness of microcement surfaces properly.
Choosing the Right Grit Size
Selecting the appropriate grit size is crucial for achieving a smooth and even finish. At Lunik, we recommend:
- Grit 40: For working on base layers.
- Grit 120: For refining the finishing layers.
- Grit 400: Ideal for polishing the first layer of polyurethane to achieve a smooth texture.
It is essential to ensure that each layer is completely dry before sanding. Sanding a wet surface can cause damage, compromising the final result.
Sanding Process
Initial Preparation:
- If tiles are present, start by filling the joints and sanding to level the surface.
- If not, begin with the first base layer.
- Note: Due to the minimal thickness of microcement, any imperfections in the initial layers will be visible in the final finish.
First Base Layer:
- Work the material carefully with the trowel to minimize irregularities.
- Sand with grit 40 once the layer is fully dry.
Second Base Layer:
- Apply the second base layer and sand again with grit 40 to ensure an even surface.
Finishing Layers:
- Apply two finishing layers of fine microcement, waiting for each layer to dry completely before sanding.
- Use grit 120 to refine the finish.
- Pay close attention when working with the trowel, as irregularities are harder to correct at this stage.
Final Polishing:
- Apply the first layer of polyurethane and sand with grit 400 to leave a smooth, tactile surface.
Final Tips
- Properly working the microcement at every stage reduces the need to rely on sanding to fix imperfections.
- Correct sanding ensures a uniform, durable, and aesthetically pleasing finish.
If you need advice on the best sandpaper for your project, don’t hesitate to contact us. Visit our Lunik website to explore our products and receive expert recommendations.
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