HUMISTOP Anti-Damp Treatment is a ready-to-use, water-based barrier for interior and exterior surfaces. It blocks localized moisture and covers micro-cracks on damp (not dripping) substrates like painted surfaces, cement, brick, and stone. Easy to apply by brush or roller in two cross coats, it dries white and can be painted over after 24 h, delivering durable, long-lasting damp protection.