Xtreme Shield Concrete Sealer
Category: Coatings - mineral surfaces
Xtreme Shield is a colloidal silica-based breathable penetrating concrete sealer that protects concrete floors and enhances the appearance of decorative concrete finishes.
Typical Use:

Porous, normal, and hard condition concrete.

Apparent use of Nanotechnology: colloidal silica
Reason for Inclusion:

"Xtreme Shield is a finishing conditioner applied after polishing. It introduces additional colloidal silica to the slab, along with a thin, clear polymer layer that gives extra protection to the slab surface." -Retrieved 1/22/2021 from https://xtremeharddensifier.com/shop-xtreme-hard/ols/products/xtreme-shield-concrete-sealer-in-1-gallon-size-makes-3-gallons

Company: Xtreme Hard
Trade: Concrete/Cement Masons
Safety Data Sheet (SDS):

available online