Sanding is necessary to remove any existing coatings, sealers, or surface contaminants on the concrete surface before applying a polyaspartic coating.
Sanding creates a slightly rough surface that promotes adhesion between the polyaspartic coating and the concrete surface.
Crack filling is necessary to fill any cracks or joints in the concrete floor to ensure a smooth and even surface for the polyaspartic coating.
Specialized crack fillers are designed to expand and contract with the concrete as it undergoes temperature changes to prevent cracking or separation over time.
For large cracks or areas that are uneven, a self-leveling underlayment may be required to create a smooth, even surface before applying the polyaspartic coating.
In some cases, it may be necessary to install a moisture barrier to prevent moisture from seeping through the concrete and affecting the polyaspartic coating. This is especially important if the concrete floor is located in a basement or on the ground floor of a building.
Proper preparation of the concrete surface, including crack filling and sanding, is crucial to ensure a successful and long-lasting polyaspartic floor installation.