1-Gal. L3000 Concentrated Water-Based Lithium Silicate Densifier, Hardener, and Sealer for Concrete & Masonry Increases strength of concrete up to 45%. Reduces penetration of water, moisture, Radon. Won't change look or color of the concrete. Applied with a sprayer. Penetrates up to 2". Creates Caclium Silicate Hydrate within the pores. Can be used alone or prior to polishing concrete floors. Superior resistance to chemicals. Concentrated. Dilutes with 1 gallon of warm water to cover up to 400-600 FT2 in two coats.