The 4553 Epoxy Coating Repair Kit from Standard Cement Materials can be used to protect concrete in fiberglass manhole bottoms. The acid resistant, U.S. EPA Environmental Technology Program verified that it increases bond strength and reduces permeability to control concrete and brick deterioration in existing sewer manholes, damp lift stations, RCP and corrugated CMP, steel pipe inverts and WTP facilities. It can be applied by hand or sprayed from 65 to 250 mils, and is stocked in 15-gallon kits for easy field mixing. 888/278-1337 www.standardcement.com.