HYDROSEAL SEALER is a water-based impregnant which is used for application to concrete to prevent free lime from forming on the surface of the concrete. It is applied to the concrete by roller or spray application and penetrates deep into the substrate and reduces the capillary pore size. This prevents the passage of free lime to the surface whilst maintaining the breathability of the concrete.
HYDROSEAL SEALER is primarily used to seal new concrete substrates prior to the application of HYDROFLOW HP cavity drain system. This acts as a pre-treatment application to new concrete to reduce the development of salt efflorescence and free lime deposits which may impede the effectiveness of the cavity drain membrane. HYDROSEAL SEALER may also be used to harden and consolidate loose friable substrates prior to the application of subsequent coatings.