Low Viscosity, Aliphatic, Non-Staining Polyurethane Based Primer
/ Concrete Sealer, for both Porous & Non-Porous Substrates


MICRPRIMER is a one component, low viscosity, 100% aliphatic polyurethane based primer suitable for all substrates. It is characterised by its very low viscosity, excellent impregnation, non-yellowing (nonstaining)
properties combined with a relatively fast cure speed and most importantly its excellent adhesion on both non-porous and porous substrates. The cured film displays good mechanical properties: Its elongation is >50%, and its tensile strength surpasses 40 N/mm²


Apply with brush or roller. Consumption: 50-200 gr/m², subject to substrate porosity.


Complies to EOTA  guidelines (European Organization of Technical Approval).


Recommended as:

As Primer for:


Shelf Life:

Can be kept for 12 months minimum in the original unopened pails in dry places and at temperatures of 5-25°C. Once opened, use as soon as possible.



1Ltr, 4Ltr, 20Ltr Pails



Features & Benefits

  • 100% Aliphatic Polyurethane

  • No yellowing, No

  • One component

  • low viscosity

  • Relatively quick curing

  • Adheres strongly, even on glassy, non-porous

  • Excellent wetting, impregnation and paint-over time.

  • Many pigment pastes available.



Clean the surface using a high pressure washer, if possible. Remove oil, grease and wax contaminants. Cement laitance, loose particles, mould release agents, cured membranes must also be removed. On non porous surfaces use HCl acid or/and Viacal. Apply with brush or roller depending on the surface to be primed at a consumption of 50-200 gr/m2 . Ensure primer has cured before applying main membrane/sealant.


Before recoating, the Primer must be cured and dry. 

For further details please refer to the


Technical Data Sheet:

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