Sch?nox? SDG is suitable for the fast pre-treatment of unheated cement based substrates with a residual moisture up to 90%RH as 2 coat application & 93%RH as a 3 coat application prior to applying Sch?nox? floor levelling compounds. It has good penetrability which means low product consumption (high coverage). The product is ready to use (one part), easy to apply and being solvent-free, with low emissions, is pleasant to use with low odour. It has short waiting times; just 15 minutes for the first coat, and approximately 45-90 minutes for the second coat, no priming or sanding is required prior to applying Sch?nox? levelling compounds.