Dr. Fixit Pidiproof LW+ 101 is a liquid admixture for concrete, mortar, and plaster that enhances waterproofing and durability. Its uses include waterproofing roofs, slabs, basements, water tanks, and external plaster, as it creates a strong barrier against water, protects reinforcement steel from corrosion, and minimizes cracks by reducing shrinkage. The product acts as a plasticizer, improving workability, and is non-toxic and ready to use.