It will help to reduce concrete dusting, and reduce the movement of subsurface water and moisture through the concrete. Joe Nasvik is a senior editor for Residential Concrete. The reaction is greater when the concrete humidity is high and when bleeding is prolonged. It will not change the look or color of the substrate and it will not leave a visible surface film. Do not apply the sealer to red clay brick, medium to dark gray concrete, concrete pavers, exposed aggregate concrete, natural stone or other masonry. So why are lithium silicate densifiers sales increasing? TERRASEAL® Lithium silicate densifier, sealer is highly‐efficient chemical agent for curing and sealing Terrafloor® decorative screeds and grinded concrete floors. This reaction produces a calcium silicate hydrate within the concrete pores. Deep penetrating hardener/sealer with high lithium content ideal for densifying and adding surface finish during grinding process or for an improved cure on newly laid concrete. METAL ION DENSIFIERS are made by attaching sodium or lithium atoms to silicate molecules. The Armor L3000 is not a water repellent sealer and doesn’t offer any water repellency benefits. Due to the pH of these solutions, reactive metal ion densifiers are slightly caustic. This calcium silicate hydrate binds and hardens the concrete surface resulting in hard, dense, dust free and traffic resistant surface finish. Concrete Densifier Ask Price. Since lithium silicates will react with calcium hydroxide present in concrete to produce the same molecule that concrete naturally forms to hold itself together (C-S-H) we feel this is the strongest, most durable densifier. Calcium silicate hydrate is the same thing that forms when concrete is originally cured. The Armor L3000 should be applied to a completely clean surface. Flexi-Crete Penetrating Concrete Sealer (PCS) is a ready to use, clear, concrete sealer that strengthens, hardens dustproofs and waterproofs concrete. ULTRASIL LI + penetrates and chemically reacts within the concrete surface, producing extremely hard and dense calcium silicate hydrate (CSH) in the pores. He can be reached at 773-824-2510 or jnasvik@hanleywood.com, Concrete Construction: Resources for contractors and specifiers including construction methods, materials and practices. The reaction is greater when the concrete humidity is high and when bleeding is prolonged. All densifiers should be applied to the point of saturation, including lithium and colloidal silica. Penetrates 4-6 mm and consolidates, hardens and dust-binds. 1-866-373-WERK Mon - Fri (8am to 4pm PST) In the hydration process, calcium hydroxide dissolved in water moves to the surface region of a slab where the silicates can react with it. The Armor L3000 is made from high quality, non-recycled, US manufactured resins. Interested in how the Armor L3000 works? A silicate densifier is required to convert any calcium hydroxide in the surface of the concrete to calcium silicate hydrate. For best results, avoid applying with a roller. A compelling reason to consider using lithium densifiers instead of sodium is that the application is much easier and proceeds quicker. Aqualon L-100 is an environmentally friendly, VOC free, lithium silicate concrete floor densifier, hardener, and sealer. It penetrates the concrete surface, chemically reacts with the free lime and produces a dense, hard matrix within the concrete and a more durable surface on top. Each silicate densifier (sodium, potassium, lithium) will penetrate to a different depth; sodium silicates penetrate the deepest but burnish up to the lowest sheen, potassium silicates penetrate up to 2 mm and burnish up more than sodium, lithium is the shiniest but only penetrates to the thickness of a sheet of paper. 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