Self-levelling compounds are specialized floor-finishing materials designed to create smooth, flat surfaces with minimal manual intervention. Unlike traditional thick screeds, these compounds have a high flow rate that allows them to spread across a substrate and settle into low spots, effectively using gravity to find a perfect level. They are generally divided into two main chemical categories: cementitious and epoxy-based systems.
Cementitious Compounds
Cementitious self-levelling compounds are primarily composed of cement, silica sand, and polymer resins. These are frequently used as an underlayment to prepare a rough or uneven concrete subfloor before the installation of final floor coverings like tile, vinyl, or hardwood.
The application process typically involves pouring the liquid mixture onto the floor and using a gauge rake or spreader to move the material into place. Because they are water-based and polymer-modified, they offer excellent compressive strength and a quick turnaround time for subsequent flooring layers.
Epoxy Compounds
Epoxy self-levelling compounds represent a more decorative and protective class of flooring. These systems consist of a resin and a hardener that, when mixed, create a chemical reaction resulting in a high-gloss, durable plastic finish. Unlike cementitious versions which are often covered up, epoxy compounds are frequently used as the final "wear layer" in industrial, commercial, or garage settings.
As demonstrated by the dramatic transformation between untreated surfaces and finished coats, epoxy provides a seamless, non-porous barrier. This makes it highly resistant to chemical spills, heavy impacts, and moisture, while also offering aesthetic flexibility through various pigments and colors.
