Flooring preparation is the key for successful floor installation! Smoothing compounds are irreplaceable flooring product in the pre-installation stage. It is mostly used to level the subflooring of either sound absorbent or non absorbent flooring. This underlayment, depending on the type, will secure fast-setting and odour-neutral application. For years F-Ball has been professional’s choice, and with smoothing compounds you will tackle any undesirable underfloor unevenness.