Mapecrete LI Hardener is a water solution of modified lithium silicates for treating the surface of cementitious substrates. It penetrates into the porosity and chemically reacts with the free lime in the cementitious substrate to form a dense microstructure which is chemically durable and resistant to abrasion. After polishing, floors treated with Mapecrete LI Hardener, are shinier, cleaner, dust-repellent and more resistant to staining and efflorescence.