Stronghold, Surface Sealer & Impregnator
As the exterior use cousin to Stone Seal, Stronghold is specially formulated to both penetrate dimensional stone surfaces, and place a protective barrier of urethane resins within the top layer of exterior concrete surfaces. This impenetrable barrier protects mineral surfaces, preventing staining and water spotting.
Stronghold is perfect for fuel pump islands, pads and sidewalks that otherwise are constantly subjected to stains from oil, grease, and other spilled fluids.
Stronghold produces excellent results when used as an impregnator and conditioner, is best reserved to applications on concrete, but will work perfectly well over any stone surface where you want a gloss, durable coating.
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