Single-component transparent acrylic primer for the Microcement system. Bonding bridge between different types of substrates and the first layer of cementitious mortar.

Floors and walls.
6 - 10 m²/L
Drying time
(20ºC RH: 60%): 10-30 minutes.


Floors and walls.


Cement, Plaster, Concrete, Brick.

Absorbent substrates.

Cementitious mortars and anhydrite substrates.

Wood derivatives on walls.

Adhesion promoter, absorption regulator, and hardener for porous surfaces.

How to apply?



Airless spray gun.

Air mix spray gun.




  • Stir the product until it is perfectly homogeneous.
  • Apply on clean and dry substrates.
  • Approximate consumption of (0.10 - 0.15) L/m2 per coat, depending on substrate absorption.
  • Maximum 2 coats.
  • Do not apply the product at high temperatures or on surfaces exposed to strong sunlight.
  • Do not apply with relative humidity exceeding 80%.
  • Apply MICROCEMENT BASE 6 to 24 hours after application.
  • Avoid allowing possible dust on the construction site to settle on the primer.
  • Check adhesion in all systems.

New Substrate:

  • Clean the substrate from foreign products and/or residues.
  • The substrate must be dry, clean, free of dust, and oils.
  • On excessively polished surfaces, sand to open the pores. If, despite this preparation, the surface remains poorly absorbent, use MICROCEMENT PRIMER N-ABS.

Restoration and Maintenance:

  • Completely remove old systems with poor adhesion.
  • Follow the usual procedure indicated for New Substrates.


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