STOPGAP FAST-TRACK 30 is a rapid setting and rapid drying, self-levelling smoothing underlayment that incorporates the latest advances in cement technology providing a truly fast-track solution. It is suitable for use in light to heavy-duty applications for preparing sound absorbent and non-absorbent subfloors prior to the installation of new floorcoverings. STOPGAP FAST-TRACK 30 allows both textile and resilient floorcoverings to be installed from as little as 45 minutes at 20°C