Valvesealer valve flush Valvesealer valve flush is a butyl flush formulated to free up and clean difficult-to-operate lubricated valves. Cuts residual gums, lacquer deposits, inert solids and corrosion deposits that make valves hard or impossible to operate. Recommended Uses Although not all valves are recoverable with Valvesealer valve flush, a popular maintenance suggestion is the periodic use of Valvesealer valve flush. By doing this, many operators have found that valves remain operable through a year of use under severe conditions. When the valve is again operational, inject the Valvesealer synthetic lubricant recommended for the particular valve service. Typical Characteristics