Cemflow Acrylic Prime Water based acrylic primer designed for porous and non-porous substrates (formerly known as Cemflow Don Acrylic Prime) You might also be interested in Cemflow GPU Plus Fast setting, self smoothing floor leveling cementitious underlayment Cemflow GPU Self smoothing floor leveling underlayment Cemflow Base S Cement based self leveling industrial surface system Cemflow TS200 Trowel applied cementitious screed