Pentra-Sil^® (IH) was designed to give concrete polishers an easy-to-use densifier that greatly improves the final finish of polished concrete by dramatically hardening the substrate and allowing abrasive tooling to work more efficiently and effectively. The Pentra-Sil^® (IH) patented lithium-silicate is applied during the honing stage of the polishing process and will not skin, discolor, or leave white blemishes and is VOC compliant.