Xtreme Hard Concrete Densifier
Coatings - multi-surface

Xtreme Hard is a highly reactive colloidal silica-based densifying agent.

Can be applied on any concrete surface to achieve a more durable finish that resists spills and wear-damage. 
colloidal silica
"Xtreme Hard Densifier with reactive colloidal silica is a densifier/hardener for concrete, used to improve the performance and appearance of concrete floors...Xtreme Hard Densifier is 99.5% pure silica in nano-scale particles, suspended in an ultra-low surface-tension liquid using a proprietary, “green” manufacturing process." -Retrieved 1/15/2021 from https://xtremeharddensifier.com/sds%2Ftds (see Xtreme Hard Concrete Densifier Technical Data Sheet)
Xtreme Hard

9924 Universal Boulevard., Suite 224-115 Orlando, Florida 32819, US

available online