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Smoothing Compounds Jumbotron after

Smoothing compounds, or underlayments, are cement-based materials generally fluid in use but set and harden to form a hard, absorbent, smooth surface suitable to receive floor coverings. They can be used to smooth out imperfections in a sub-floor which would otherwise be mirrored through the final floor finish. They may also be used as a thin screed, by the addition of aggregate, to provide a level floor where the necessary thickness for a conventional cement and sand screed is not available.