White, super-covering, water-based insulating primer, specially designed to isolate and cover dark stains, yellowing, exhaust fumes, and stains from smoke, nicotine, mold, coffee, juices, water-based markers, and other pollutants.

It has high covering capacity, excellent performance, quick drying, and can be applied to all interior and exterior walls, ensuring strong adhesion, excellent spread, and a perfect finish for all plastic and acrylic paints.

The use of VERADUR STAIN - ALKALI BLOCK is the safest method for preparing all stained building surfaces because, thanks to its unique dual composition, it ensures the insulation of water-soluble pollutants, preventing them from migrating to the surface of the paint, while simultaneously balancing the absorbency of interior and exterior surfaces, allowing for high breathability.

With special new technology acrylic resins in its composition, VERADUR STAIN & ALKALI BLOCK resists the intense alkalinity of surfaces such as fresh concrete, new plasters, troweled walls, etc.

Thanks to its unique super-covering ability, it works perfectly as an intermediate layer for transitioning from dark to light shades, reducing the extra "coats" that would be required for the final color.

It contains no ammonia and is virtually odorless.