Berger Dampstop Duo Primer is a high-performance acrylic waterproof primer designed for both interior and exterior plastered walls, brick, and masonry surfaces. Enriched with nano-technology, it blocks pores and resists dampness, salt efflorescence, and alkali attacks. It enhances topcoat coverage by up to 15–20% and offers long-lasting wall protection by forming a hydrophobic barrier. Ideal for use before painting in damp-prone or high-humidity areas.

Coverage: Approx. 45–55 sq. ft. per litre per coat
Drying Time: Touch dry in 4–6 hours

Key Features:

• Nano-tech formula for deep surface sealing

• Waterproof and efflorescence-resistant

• Boosts paint coverage and durability

• Easy to apply with brush or spray

• 7-year exterior and 2-year interior performance warranty