Pentra-Sil HD is a lithium silicate concrete densifier that penetrates into the concrete substrate rather than forming a topical coating. Once absorbed, the lithium silicate reacts chemically with free lime (calcium hydroxide) naturally present in concrete. This reaction produces calcium silicate hydrate, the same compound responsible for concrete’s strength during initial curing.
The result is a denser, harder surface from within. Microscopic pores in the concrete become filled, reducing porosity and eliminating the loose particles that cause dusting. Unlike sodium or potassium silicate densifiers that require scrubbing and rinsing to remove surface residue, Pentra-Sil HD’s high-solids Nano-Lithium formula absorbs more completely with less material left on the surface.
This penetrating chemistry means there’s no film to wear away, peel, or yellow over time. The treatment becomes part of the concrete itself, providing permanent hardening that improves with age. On polished floors, Pentra-Sil HD enhances the diamond polishing process by creating a harder substrate that takes a better shine and holds it longer.
With 16% solids content, Pentra-Sil HD delivers more reactive material per gallon than standard lithium densifiers. This higher concentration translates to better performance on older or more porous concrete that needs additional densification to achieve optimal hardness.
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