Ferrorez 100 is a specially designed, fast-drying primer for self-leveling underlayments. Formulated from modified acrylics, it features low viscosity and high penetration capabilities. It effectively minimizes outgassing from the existing concrete substrate, which prevents pinholes and craters from forming on the surface of self-leveling mortars such as Ferrogreet 215A. Ideal for projects requiring rapid turnaround, it significantly enhances the bond strength between old concrete and new leveling compounds while ensuring optimal flow and workability of the topping.