Recommended use
For use on exterior surfaces like concrete, cement plaster etc. where a medium textured finish is required that can cover minor substrate undulations/imperfections.

Substrate Applicable: Cement plaster, concrete, rendered surfaces, block work, gypsum board, stucco filler etc.  

Surface preparation
The surface must be clean, dry, fully cured and totally free from dirt, dust, loose particles and other contaminations like oil, grease and chemicals.  Remove all loose particles, sharp edges, nibs etc. by abrading the surface with sand paper, rubbing stone, stiff bristle brush etc. and remove the accumulated dust.   

Typical paint system

On Concrete & Plaster 

1 coat Acrylic Emulsion Primer or Tex Primer 
2 coats Magnum (Use Block Filler for minor filling/smoothening after the primer)