Understanding Self-Levelling Compound
Self-levelling compound is a versatile flooring material designed to create an exceptionally flat and smooth surface over uneven concrete slabs. Composed primarily of cement, fine sands, and specialized additives, this compound is poured directly onto the subfloor where it self-spreads and levels out, resulting in a seamless base for subsequent flooring layers. Its durability and ability to conform to irregularities make it a popular choice in both commercial and residential construction projects, especially when a high-quality, even surface is necessary for tiles, vinyl, or epoxy coatings.
Is It Possible to Polish Self-Levelling Compound?
Yes, self-levelling compound can be polished to attain a refined, glossy finish. However, unlike natural stone surfaces such as granite or marble, self-levelling compound presents unique challenges because of its porous nature and composition. Achieving a high-polish effect requires careful preparation, appropriate equipment, and experience in concrete surface finishing techniques. While it is feasible, the process demands specific steps and professional expertise to ensure a durable, aesthetically pleasing result.
Step-by-Step Process for Polishing Self-Levelling Compound
- Allow Proper Curing: Ensure the self-levelling compound has fully cured and hardened, which typically takes at least 24 hours, but checking manufacturer recommendations is essential for optimal results.
- Thorough Cleaning: Remove all dust, dirt, grease, or debris from the surface using a vacuum or damp cloth. Cleanliness is crucial for effective grinding and polishing.
- Surface Preparation with Grinding: Use a concrete grinder fitted with diamond abrasive pads, starting with a coarse grit to eliminate surface imperfections, bumps, and irregularities. Progressively switch to finer grits to refine the surface, aiming for a uniform, smooth finish suitable for polishing.
- Apply a Concrete Densifier: Treat the surface with a penetrating densifier or hardener to fill pores, improve surface hardness, and enhance the effectiveness of polishing steps.
- Polishing Procedure: Employ a concrete polishing machine with diamond abrasive pads, beginning with a low-grit pad to remove any residual scratches. Gradually switch to higher-grit pads, increasing the shine and clarity of the surface until the desired glossy finish is achieved.
- Sealing the Surface: Finish by applying a high-quality concrete sealer, which protects against stains, moisture, and wear, prolonging the polished look and maintaining durability.
Note: This process involves specialized equipment and techniques that require experience. For best results and safety considerations, it is highly advisable to engage professional flooring contractors who are skilled in concrete polishing.
In Summary
While self-levelling compound is primarily used to create level flooring surfaces, it can indeed be polished to a bright, glossy finish. Achieving this look involves a detailed process of curing, cleaning, grinding, densifying, polishing, and sealing. Given the technical nature of concrete polishing, consulting with or hiring experienced professionals ensures a high-quality, durable finish that meets your aesthetic and functional expectations.