Pentra-Guard™ (EXT)
Category: Coatings - mineral surfaces

Exterior Surface Hardening and Protective Clear Coat

Typical Use:

Specifically designed for protecting and preserving decorative and integrally colored concrete and masonry surfaces… perfect for protecting exposed aggregate, concrete, brick and stone pavers.

Apparent use of Nanotechnology: nano lithium
Reason for Inclusion:

“This lithium-based solution is VOC compliant and easy to apply.” -Retrieved 8/30/23 from

"Pentra-Guard™ (EXT) is a is a clear 'Micro Film Forming Hybrid Inorganic / Organic Nano Lithium™' that hardens, seals and protects against moisture damage and enhances the natural color of exposed aggregate, brick, slate, stone and stamped concrete." (Information no longer available as of 8/30/23)

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

unable to locate SDS online