Blok-Guard & Graffiti Control Ultra is a clear, solvent-based silicone elastomer formulated to weatherproof concrete block and other porous masonry materials. Blok-Guard & Graffiti Control Ultra protects masonry surfaces from repeated graffiti attacks without altering the natural appearance. Blok-Guard & Graffiti Control Ultra penetrates and fills pores to prevent water penetration through exterior walls exposed to normal weathering.
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Blok-Guard & Graffiti Control Ultra
VOC Exempt Solvent
-Treated surfaces resist penetration of most types of graffiti. Simplifies graffiti removal.
-Effective protection for hard-to-seal surfaces.
-Controls rainwater penetration through exterior block walls.
-Helps control efflorescence, mildew and other moisture-related stains.
1 year in tightly sealed, unopened container
maximum 100 g/L
Clear liquid, petroleum odor
30-250 sq ft/gal. See Product Data Sheet for specific variations per substrate.
<–22° F (<–°30 C)
100° F (38°C) ASTM D3278
9% ASTM D2369
Blok-Guard & Graffiti Control Ultra penetrates and fills pores to prevent water penetration through exterior walls exposed to normal weathering. Graffiti removal is fast and easy using PROSOCO's Graffiti Remover product. Blok-Guard & Graffiti Control Ultra is easy to apply with low-pressure spray, brush or roller. Treated surfaces exhibit excellent surface beading, withstand extreme temperatures and do not trap moisture. Offers excellent UV stability.
BLOK-GUARD & GRAFFITI CONTROL ULTRA