What is the estimated coverage rate on haydite block (expanded shale) as an anti-graffitiant? enegren February 23, 2024 FAQsFirst 50-80 Square Feet Per Gallon. Second coat 60-90 Square Feet Per Gallon.Post navigationPrevious Previous post: Which product do I use on porous marble as a water repellent?Next Next post: What sizes do your product come in?
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