AB Sealer WB is awater-based, extremely versatile sealer for use with all cementitious materials, lime washes, plasters, etc. It can be used to penetrate substrate as an adhesion-promoting agent, as a primer/ sealer for decorative coatings. It increases the compressive, tensile, and flexural strengths of surfaces. HB Sealer WB can be used as a curing compound, which will form a thin film covering the surface of the concrete to prevent premature water loss due to evaporation