SP 20

Rough cast plaster

Ready-mixed cement mortar for the rough cast plaster layer, enhanced with polymer resins.
Classified as CS IV / W1 / A1 type mortar according to European standard EN 998-1.


Used before the base-coat plaster or one-coat plaster, creating a very strong layer with increased adhesion on all surfaces, capable to receive the subsequent plaster layers.
Recommended for difficult substrates such as ceilings, columns, lintels, beams, insulating materials, etc.
Can also be used for small-scale repair works.
Applied with a plastering machine or manually.
Suitable for interior and exterior use.


Approximately 6-7 kg/m2 for a 4mm thick layer.


Available in:

  • 25kg and 40kg paper bags
  • 1000kg big bags

Shelf life: At least 12 months from production date in sealed bags, in dry conditions, protected from frost.