What is the estimated coverage rate on burnished block as an anti-graffitiant? enegren February 23, 2024 FAQsFirst 100-125 Square Feet Per Gallon. Second coat 110-135 Square Feet Per Gallon.Post navigationPrevious Previous post: What is the estimated coverage rate on fluted block as an anti-graffitiant?Next Next post: Which product do I use on stucco as an anti-graffitiant?