Description & Use Consolideck® LS® is the premium sealer, hardener and densifier for concrete surfaces. This deeply penetrating lithium silicate treatment penetrates and reacts with the concrete to produce insoluble calcium silicate hydrate within the concrete pores. Treated surfaces resist damage by water, chemical attack or surface abrasion. The surface sheen imparted by Consolideck® LS® reduces dusting and simplifies maintenance producing a cleaner, healthier environment. Safer and easier to apply than conventional sodium or potassium silicate hardeners, Consolideck® LS® will not trigger or contribute to surface ASR (Alkali Silicate Reaction).