Waterproofing admixtures are porous materials that have the ability to absorb water and water-borne contaminants. Hydrophobic and pore blocking ingredients react with products of the cement hydration process to produce a hydrophobic material which resists external water, decreasing absorption into the concrete. Dichtament DM is best quality waterproofing admixture in Bangladesh. Only waterproofing admixture which is 100% water tight ability.