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COSMO MICRO PRIMER is a one component,low viscosity , polyurethane based primer suitable for many different substrates.

It is characterised by its very low viscosity and balanced curing speed which result in excellent wetting, impregnation and paint-over time on different substrates , whether of high , low or no porosity (e.g. glass and metals). Additionally , it can be effectively used on both dry and wet concrete , even green concrete , not only as primer but also as a low-cost sealing solution, increasing, thus , the durability of the substrate.

The cured film displays outstanding mechanical properties: Its elongation is 300%, and its tensile strength surpasses 30 N/mm2.


The adhesion strength of COSMO MICRO PRIMER exceeds the requirements of ΕΟΤΑ (European Organization of Technical Approval).


To be used as primer for:

  • Concrete structures (Humid, damp or wet concrete)
  • Ceramic tiles,
  • Non-porous substrates like glass, marble & metals.
  • Also, for use as concrete sealer.

20 lt.

  • Will discolour when used on its own exposed.This is purely visual and does not affect the performance of the membrane.
  • One component.
  • Of low viscosity.
  • Easily applicable, even on wet concrete.
  • Adheres strongly, even on glassy, non-porous substrates.
  • Excellent wetting, impregnation and paint-over time.
  • Elastic.
  • Many pigment pastes available.
  • A low-cost solution for concrete sealing & protection.
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