As a bonding slurry: Mix PlekoBond S with water at 1:1 ratio, mix with fresh cement and fine sand to achieve a homogeneous brush able slurry consistency Brush vigorously into the presoaked substrate to fill all pores, avoid puddling and remove any excess. The repair mortar or topping should be applied while film is still tacky.
As an additive for cement mixes: Add PlekoBond S (up to 25% of the cement weight) to the previously prepared mixture of sand/cement or sand/cement /gravel and mix with suitable concrete mixer, pan mixer or low speed mixer until homogeneous, avoid overmixing. Apply by steel trowel and finish with a wooden float.