Long waiting times through moist substrates and the associated high drying costs present a problem especially with tight deadlines. The 2-component epoxy moisture barrier UZIN PE 460 is ideally suited not only for priming and reinforcing but also especially for sealing cementitious substrates to an max. residual moisture value of 6 – 7 CM-%. The application safely seals very high moisture contents in concrete floors or cementitious screeds. Combined with the super-fast primer UZIN PE 280, a surface is created which presents an optimal bond to the subsequent levelling compound layer.