building? maintaining? repairing? renovating? the solutions are here!

Hydrostop Plaster Primer

Preparation primer for colored plasters

Water-soluble acrylic micromolar primer, ideal for the preparation of surfaces to be coated with white or colored cementitious plasters. It presents high penetrating ability and impregnates surfaces without creating a film. It effectively reduces the surface absorbency while maintaining its breathability. It ensures plaster protection from premature surface drying (early dehydration), eliminates the reduction of strength and the risk occurrence of cracks. Apply it to highly porous substrates, such as base coat plasters and aircrete before the application of white or colored plaster. It also ensures even drying and color uniformity across the entire surface of the new plaster.



Approximately 10-12m²/lt, depending on the absorbency of the substrate and the dilution rate, on properly prepared surfaces.


5lt, 20lt


White (becomes transparent when dry).