Bostik Two in One (5l)

91 000 74051 Bostik Two in One is a chloride-free, integral waterproofing and water-reducing admixture formulated for use in concrete and plaster mixes. It enhances workability, improves compaction, blocks capillary penetration, strengthens cohesion, and boosts both compressive strength and durability.Key Benefits:Enhances concrete and plaster workability and compactionBlocks capillary water absorption, acting as internal waterproofingIncreases durability and compressive strengthIdeal For:Concrete roof slabsFloor screeds in bathrooms & damp zonesBasement slabs & wallsWater tank and sump plastering/concretingExternal and internal plasteringDosage & Packaging:Recommended: 200 ml per 50 kg cementAvailable in sizes: 200 ml, 1 L, 5 L, 10 L, 20 L, 100 L, 200 LQ1. What is Bostik Two in One used for?It's used as a dual-purpose admixture for waterproofing and improving workability in concrete and plaster, especially in roofs, basement slabs, screeds, and water retaining structures.Q2. Why choose it over conventional waterproofing methods?Since it's added directly to the mix, it creates homogeneous internal waterproofing, avoiding surface layers that can peel or crack.Q3. What is the recommended dosage?Use 200 ml per 50 kg cement for effective waterproofing—followed across applications consistently.Q4. Is it chloride-free and safe for use in water tanks?Yes—it's fully chloride-free, making it safe for use in potable water storage areas without risk of corrosion.Q5. Which applications are most suitable?Concrete roof slabsBathroom and exterior floor screedsBasement and wall plaster/concreteWater tanks, sumps, and external/internal plasteringQ6. What packaging sizes are available?Common packaging includes 200 ml, 1 L, 5 L, 10 L, 20 L, 100 L, and 200 L containers.Q7. How much does it cost?Pricing varies with your region and pack size. Q8. How should it be stored?Store in a cool, dry place. Typically it has a shelf life of around 1 year in sealed containers.