Xypex Crystalline Technology is either applied to the surface of concrete or added to concrete at the time of batching.With water as the catalyst, Xypex's proprietary chemicals react with the by-products of cement hydration, forming a non-soluble crystalline structure within the inter-connected pores, voids, capillaries and hairline cracks in the concrete. The crystalline formation prevents the ingress of water and other liquids even under hydrostatic pressure, providing permanent protection against harsh, aggressive environments:- Waterproofs deep underground structures- Protects concrete against corrosion- Self-heals cracks- Retains large volumes of water- Extends the service life of important infrastructure- For new construction and rehabilitation"